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Sección de Química Orgánica

Departamento de Química Inorgánica y Orgánica

Capítulos de libro


Basic research Modern Methods in Stereoselective Aldol Reactions
by Rainer Mahrwald Editor
Chapter 1. Stereoselective Acetate Aldol Reactions
Pedro Romea and Fèlix Urpí.
Pages 1-81
Wiley, 2013


Organic Syntheses
Stereoselective Synthesis of anti α-Methyl-β-Methoxy Carboxylic Compounds
Pedro Romea and Fèlix Urpí.
Volume 90
Pages 182-189
Organic Syntheses, 2013

e-EROS Encyclopedia of Reagents for Organic Synthesis
Trichlorotitanium isopropoxide
Pedro Romea and Fèlix Urpí.
e-EROS, 2008

Recent Progress in the Chemical Synthesis of Antibiotics and Related Microbial Products
by Gabor Lukacs Editor
Cyclization Methods Related to the Synthesis of Macrolide Antibiotics
Martí Bartra, Fèlix Urpí;, and Jaume Vilarrasa.
Volume 2
Pages 1-65
Springer-Verlag, 1993


Artículos


117. Stereocontrolled Aldol-Like Reactions Involving Oxocarbenium Intermediates
Galeote, O.; Kennignton, S. C. D.; Mellado-Hidalgo, M.; Costa, A. M.; Romea, P.; Urpí, F.
Synlett 2024, 35, in press.
116. Direct, Stereodivergent, and Catalytic Michael Additions of Thioimides to α,β-Unsaturated Aldehydes – Total Synthesis of Tapentadol
Galeote, O.; Kennignton, S. C. D.; Benedito, G.; Fraedrich, L.; Davies-Howe, E.; Costa, A. M.; Romea, P.; Urpí, F.; Aullón, G.; Font-Bardia, M.: Puigjaner, C.
Angew. Chem. Int. Ed. 2024, 63, in press.
115. Protected syn-Aldol Compounds from Direct, Catalytic, and Enantioselective Reactions of N‑Acyl-1,3-oxazinane-2-thiones with Aromatic Acetals
Mellado-Hidalgo, M.; Romero-Cavagnaro, E. A.; Nageswaran, S.; Puddu, S.; Kennignton, S. C. D.; Costa, A. M.; Romea, P.; Urpí, F.; Aullón, G.; Font-Bardia, M.
Org. Lett. 2023, 25, 659-664.
114. Optimized Asymmetric Synthesis of Umuravumbolide
Pérez-Palau, M.; Balaguer-Garcia, E.; Romea, P.; Urpí, F.
ACS Omega 2022, 7, 30835–30840.
113. Direct and Asymmetric Aldol Reactions of N-Azidoacetyl-1,3-thiazolidine-2-thione Catalyzed by Chiral Nickel(II) Complexes. A New Approach to the Synthesis of β-Hydroxy-α-Amino Acids
Teloxa, S. F.; Mellado-Hidalgo, M.; Kennington, S. C. D.; Romea, P.; Urpí, F.; Aullón, G.; Font-Bardia, M.
Chem. Eur. J. 2022, 28, e202200671.
112. Synthesis of [(R)-DTBM-SEGPHOS]NiCl2 for the Enantioselective Acetal Formation from N-Propanoyl-1,3-Thiazinane-2-thione and Trimethyl Orthoformate
Kennington, S. C. D.; Romea, P.; Urpí, F.
Org. Synth. 2022, 99, 1-14.
111. Stereoselective Alkylation of Chiral Titanium(IV) Enolates with tert-Butyl Peresters
Pérez-Palau, M.; Sanosa, N.; Romea, P.; Urpí, F.; López, R.; Gómez-Bengoa, E.; Font-Bardia, M.
Org. Lett. 2021, 23, 8852-8856.
110. Synthesis and Acylation of 1,3-Thiazinane-2-thione
Kennington, S. C. D.; Galeote, O.; Mellado-Hidalgo, M.; Romea, P.; Urpí, F.
Org. Synth. 2021, 98, 374-390.
109. Direct, Enantioselective, and Nickel(II) Catalyzed Reactions of Direct and Enantioselective Aldol Reactions Catalyzed by Chiral Nickel(II) Complexes
Kennington, S. C. D.; Teloxa, S. F.; Mellado-Hidalgo, M.; Galeote, O.; Puddu, S.; Bellido, M.; Romea, P.; Urpí, F.; Aullón, G.; Font-Bardia, M.
Angew. Chem. Int. Ed. 2021, 60, 15307-15312.
108. Direct, Enantioselective, and Nickel(II) Catalyzed Reactions of N-Azidoacetyl Thioimides with Trimethyl Orthoformate. A New Combined Methodology for the Rapid Synthesis of Lacosamide and Derivatives
Teloxa, S. F.; Kennington, S. C. D.; Camats, M.; Romea, P.; Urpí, F.; Aullón, G.; Font-Bardia, M.
Chem. Eur. J. 2020, 26, 11540-11548.
107. Stereoselective Decarboxylative Alkylation of Titanium(IV) Enolates with Diacyl Peroxides
Gómez-Palomino, A.; Pérez-Palau, M.; Romea, P.; Urpí, F.; Del Olmo, M.; Hesse, T.; Fleckenstein, S.; Gómez-Benoga, E.; Sotorríos, L.; Font-Bardia, M.
Org. Lett. 2020, 22, 199-203.
106. Direct anti Glycolate Aldol Reaction of Protected Chiral N‐Hydroxyacetyl Thiazolidinethiones with Acetals Catalyzed by a Nickel(II) Complex
Romo, J. M.; Romea, P.; Urpí, F.
Eur. J. Org. Chem. 2019, 6296-6305.
105. Z = 22, titanio, Ti
Urpí, F.
An. Quim. 2019, 115, 84.
104. Stereoselective Synthesis of Protected Peptides Containing an anti β-Hydroxy Tyrosine
Fernández-Valparis, J.; Romea, P.; Urpí, F.
Eur. J. Org. Chem. 2019, 2745-2752.
103. Direct and Asymmetric Nickel(II)-Catalyzed Construction of Carbon−Carbon Bonds from N‐Acyl Thiazinanethiones
Kennington, S. C. D.; Taylor, A. J.; Romea, P.; Urpí, F.; Aullón, G.; Font-Bardia, M.; Ferré, L.; Rodrigalvarez, J.
Org. Lett. 2019, 21, 305-309.
102. General and Stereoselective Aminoxylation of Biradical Titanium(IV) Enolates with TEMPO: a Detailed Study on the Effect of the Chiral Auxiliary
Kennington, S. C. D.; Gómez-Palomino, A.; Salomó, E.; Romea, P.; Urpí, F.; Font-Bardia, M.
Org. Biomol. Chem. 2018, 16, 4807-4815.
101. Stereoselective Oxidation of Titanium(IV) Enolates with Oxygen
Gómez-Palomino, A.; Romea, P.; Urpí, F.; Font-Bardia, M.
Synthesis 2018, 50, 2721-2726.
100. Stereoselective and Catalytic Synthesis of anti β-Alkoxy-α-Azido Carboxylic Derivatives
Fernández-Valparís,J.; Romea, P.; Urpí, F.; Font-Bardia, M.
Org. Lett. 2017, 19, 6400-6403.
99. Substrate–Controlled Michael Additions of Titanium Enolates from Chiral α-Benzyloxy Ketones to Conjugated Nitroalkenes
Gómez-Palomino, A.; Barrio, A.; García-Lorente, P.; Romea, P.; Urpí, F.; Font-Bardia, M.
Eur. J. Org. Chem. 2017, 5776-5784.
98. Experimental and Computational Evidence of the Biradical Structure and Reactivity of Titanium(IV) Enolates
Heras, C.; Gómez-Palomino, A.; Romea, P.; Urpí, F.; Bofill, J. M.; Moreira, I. de P. R.
J. Org. Chem. 2017, 82, 8909-8916.
97. Diastereoselective and Catalytic α-Alkylation of Chiral N-Acyl Thiazolidinethiones with Stable Carbocationic Salts
Kennington, S. C. D.; Ferrè, M.; Romo, J. M.; Romea, P.; Urpí, F.; Font-Bardia, M.
J. Org. Chem. 2017, 82, 6426-6433.
96. Total Synthesis of (+)-Herboxidiene/GEX 1A
Gómez-Palomino, A.; Pellicena, M.; Krämer, K.; Romea, P.; Urpí, F.; Aullón, G.; Padrón, J. M.
Org. Biomol. Chem. 2017, 15, 1842-1862.
95. Substrate-controlled Aldol Reactions from Chiral α-Hydroxy Ketones
Aullón, G.; Romea, P.; Urpí, F.
Synthesis 2017, 49, 474-503.
94. Stereoselective Synthesis of the C9–C19 Fragment of Peloruside A
Kennington, S.C.D.; Romo, J.M.; Romea, P.; Urpí, F.
Org. Lett. 2016, 18, 3018-3021.
93. Studies towards the synthesis of tedanolide C. Construction of the C13-epi C1–C15 fragment
Zambrana, J.; Romea, P.; Urpí, F.
Org. Biomol. Chem. 2016, 14, 5219-5223.
92. Stereoselective Alkylation of (S)-N-Acyl-4-isopropyl-1,3-thiazolidine-2-thiones Catalyzed by (Me3P)2NiCl2
Fernández-Valparís, J.; Romo, J. M.; Romea, P.; Urpí, F.; Kowalski, H.; Font-Bardia, M.
Org. Lett. 2015, 17, 3540-3543.
91. Kinetic resolution of esters from secondary and tertiary benzylic propargylic alcohols by an improved esterase-variant from Bacillus sp. BP-7
Fillat, A.; Romea, P.; Pastor, F. I. J.; Urpí, F.; Díaz, P.
Catalysis Today 2015, 255, 16-20.
90. Stereoselective Acetate Aldol Reactions of α-Silyloxy Ketones
Lorente, A.; Pellicena, M.; Romea, P.; Urpí, F.
Tetrahedron 2015, 71, 1023-1035.
89. Substrate-Controlled Michael Additions of Chiral Ketones to Enones
Fàbregas, M.; Gómez-Palomino, A.; Pellicena, M.; Reina, D. F.; Romea, P.; Urpí, F.; Font-Bardia, M.
Org. Lett. 2014, 16, 6220-6223.
88. Stereoselective Aminoxylation of Biradical Titanium Enolates with TEMPO
Gómez-Palomino, A.; Pellicena, M.; Romo, J. M.; Solà, R.; Romea, P.; Urpí, F.; Font-Bardia, M.
Chem. Eur. J. 2014, 20, 10153-10159.
87. Synthesis of amphidinolide Y precursors
Mola, L.; Olivella, A.; Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 2014, 55, 900-902.
86. Stereoselective Titanium-Mediated Aldol Reactions of a Chiral Lactate-Derived Ethyl Ketone with Ketones
Alcoberro, S.; Gómez-Palomino, A.; Solà, R.; Romea, P.; Urpí, F.; Font-Bardia, M.
Org. Lett. 2014, 16, 584-587.
85. Improving enantioselectivity towards tertiary alcohols using mutants of Bacillus sp. BP-7 esterase EstBP7 holding a rare GGG(X)-oxyanion hole
Fillat, A.; Romea, P.; Urpí, F.; Pastor, F. I. J.; Diaz, P.
Appl. Microbiol. Biotechnol. 2014, 98, 4479-4490.
84. Diastereoselective Methyl Orthoformate Alkylations of Chiral N-Acyl Thiazolidinethiones Catalyzed by Nickel(II) Complexes
Gálvez, E.; Romo, J. M.; Nubiola, I.; Romea, P.; Urpí, F.; Kindred, M.
Adv. Synth. Catal. 2013, 355, 2781-2786.
83. Stereoselective titanium-mediated aldol reactions from a chiral isopropyl ketone
Zambrana, J.; Romea, P.; Urpí, F.
Chem. Commun. 2013, 49, 4507-4509.
82. Stereoselective synthesis of C-glycosides by addition of titanium enolates from a chiral N-glycolyl thiazolidinethione to glycals
Gálvez, E.; Sau, M.; Romea, P.; Urpí, F.; Font-Bardia, M.
Tetrahedron Lett. 2013, 54, 1467-1470.
81. Stereoselective titanium-mediated aldol reactions of α-benzyloxy methyl ketones
Pellicena, M.; Solsona, J. G.; Romea, P.; Urpí, F.
Tetrahedron 2012, 68, 10338-10350.
80. Diastereoselective Additions of Titanium Enolates from N-Glycolyl Thiazolidinethiones to Acetals
Baiget, J.; Caba, M.; Gálvez, E.; Romea, P.; Urpí, F.; Font-Bardia, M.
J. Org. Chem. 2012, 77, 8809-8814.
79. Stereoselective Synthesis of protected 3-amino-3,6-dideoxyaminosugars
Nebot, J.; Romea, P.; Urpí, F.
Org. Biomol. Chem. 2012, 10, 6395-6403.
78. Total Synthesis of (+)-Herboxidiene from Two Chiral Lactate-derived Ketones
Pellicena, M.; Krämer, K.; Romea, P.; Urpí, F.
Org. Lett. 2011, 13, 5350-5353.
77. Highly Stereoselective Titanium-mediated Aldol Reaction from (S) 4-Benzyloxy-3-methyl-2-butanone
Zambrana, J.; Romea, P.; Urpí, F.; Luján, C.
J. Org. Chem. 2011, 76, 8575-8587.
76. Highly stereoselective titanium-mediated aldol reactions from chiral α-silyloxy ketones. A reliable tool for the synthesis of natural products
Esteve, J.; Jiménez, C.; Nebot, J.; Velasco, J.; Romea, P.; Urpí, F.
Tetrahedron 2011, 67, 6045-6056.
75. Stereoselective Acetate Aldol Reactions from Metal Enolates
Ariza, X.; Garcia, J.; Romea, P.; Urpí, F.
Synthesis 2011, 2175-2191.
74. Mechanism of Action of the Cytotoxic Macrolides Amphidinolide X and J
Trigili, C.; Pera, B.; Barbazanges, M.; Cossy, J.; Meyer, C.; Pineda, O.; Rodriguez-Escrich, C.; Urpí, F.; Vilarrasa, J.; Fernando Díaz, J.; Barasoain, I.
ChemBioChem 2011, 12, 1027-1030.
73. Synthesis and Biological Evaluation of 1-Deoxy-5-hydroxysphingosine Derivatives
Esteve, J.; Lorente, A.; Romea, P.; Urpí, F.; Ríos-Luci,C.; Padrón, J. M.
Eur. J. Org. Chem. 2011, 960-967.
72. Highly Stereoselective Synthesis of syn-1,3-Diols through a Sequential Titanium-Mediated Aldol Reaction and LiBH4 Reduction
Esteve, J.; Matas, S.; Pellicena, M.; Velasco, J.; Romea, P.; Urpí, F.; Font-Bardia, M.
Eur. J. Org. Chem. 2010, 3146-3151.
71. 1,4-syn-Asymmetric induction in the titanium-mediated aldol reactions of chiral methyl α-silyloxy ketones
Lorente, A.; Pellicena, M.; Romea, P.; Urpí, F.
Tetrahedron Lett. 2010, 51, 942-945.
70. Stereoselective Synthesis of α- and β-C-Glycosides by Addition of Titanium Enolates to Glycals
Gálvez, E.; Larrosa, I.; Romea, P.; Urpí.
Synlett 2009,1982-2986.
69. Stereoselective Synthesis of Highly Functionalized Structures from Lactate-Derived Halo Ketones
Nebot, J.; Romea, P.; Urpí, F.
J. Org. Chem. 2009, 74, 7518-7521.
68. Efficient Approach to Fluvirucins B2-B5, Sch 38518, and Sch 39185. First Synthesis of their Aglycon via CM and RCM Reactions
Llàcer, E.; Urpí, F.; Vilarrasa, J.
Org. Lett. 2009, 11, 3198-3201.
67. New Approach to the Stereoselective Synthesis of Tertiary Methyl Ethers
Checa, B.; Gálvez, E.; Parelló, R.; Sau, M.; Romea, P.; Urpí, F.; Font-Bardia, M.; Solans, X.
Org. Lett. 2009, 11, 2193-2196.
66. Catalytic Staudinger-Vilarrasa Reaction for the Direct Ligation of Carboxylic Acids and Azides
Burés, J.; Martín, M.; Urpí, F.; Vilarrasa, J.
J. Org. Chem. 2009, 74, 2203-2206.
65. Stereoselective Synthesis of anti α-Methyl-β-methoxy Carboxylic Compounds
Gálvez, E.; Romea, P.; Urpí, F.
Org. Synth. 2009, 86, 81-91.
64. Preparation of (S)-4-Isopropyl-N-propanoyl-1,3-thiazolidine-2-thione
Gálvez, E.; Romea, P.; Urpí, F.
Org. Synth. 2009, 86, 70-80.
63. Stereoselective addition of titanium enolates to functionalized acetals. A novel approach to the γ-amino acids of bistramides and FR252921
Gálvez, E.; Parelló, R.; Romea, P.; Urpí, F.
Synlett 2008, 2951-2954.
62. Stereocontrolled Total Synthesis of Amphidinolide X via a Silicon-Tethered Metathesis Reaction
Rodríguez-Escrich, C.; Urpí, F.; Vilarrasa, J.
Org. Lett. 2008, 10, 5191-5194.
61. 1,4-Asymmetric induction in the titanium-mediated aldol reactions of α-benzyloxy methyl ketones
Pellicena, M.; Solsona, J. G.; Romea, P.; Urpí, F.
Tetrahedron Lett. 2008, 49, 5265-5267.
60. On the influence of chiral auxiliaries in the stereoselective cross-coupling reactions of titanium enolates and acetals
Baiget, J.; Cosp, A.; Gálvez, E.; Gómez-Pinal, L ; Romea, P.; Urpí, F.
Tetrahedron 2008, 64, 5637-5644.
59. Unconventional Biradical Character of Titanium Enolates
Moreira, I. de P. R.; Bofill, J. M.; Anglada, J. M.; Solsona, J. G.; Nebot, J.; Romea, P.; Urpí, F.
J. Am. Chem. Soc. 2008, 130, 3242-3243.
58. Synthesis of six-membered oxygenated heterocycles through carbon-oxygen bond-forming reactions
Larrosa, I.; Romea, P.; Urpí, F.
Tetrahedron 2008, 64, 2683-2723.
57. Michael Reactions of Titanium Enolates of Glycolic Acid Derivatives with the Weinreb and Morpholine Amides of Acrilic Acid
Olivella, A.; Rodríguez-Escrich, C.; Urpí, F.; Vilarrasa, J.
J. Org. Chem. 2008, 73, 1578-1581.
56. Highly Stereoselective TiCl4-Mediated Aldol Reactions from (S)-2-Benzyloxy-3-pentanone
Rodríguez-Cisterna, V.; Villar, C.; Romea, P.; Urpí, F.
J. Org. Chem. 2007, 72, 6631-6633.
55. Toward a Total Synthesis of Amphidinolide X and Y. The Tetrahydrofuran-Containing Fragment C12-C21
Rodríguez-Escrich, C.; Olivella, A.; Urpí, F.; Vilarrasa, J.
Org. Lett. 2007, 9, 989-992.
54. Stereoselective titanium-mediated aldol reaction of (S)-2-tert-butyldimethylsilyloxy-3-pentanone
Nebot, J.; Figueras, S.; Romea, P.; Urpí, F.; Ji, Y.
Tetrahedron 2006, 62, 11090-11099.
53. Synthesis of the C9-C21 fragment of debromaplysiatoxin and oscillatoxins A and D
Cosp, A.; Llàcer, E.; Romea, P.; Urpí, F.
Tetrahedron. Lett. 2006, 47, 5819-5823.
52. Studies on the hydrogenolysis of benzyl ethers
Llàcer, E.; Romea, P.; Urpí, F.
Tetrahedron. Lett. 2006, 47, 5815-5818.
51. Hydroiodination of Terminal Double Bonds Via Hydroboration or Hydrozirconation in Connection with the Total Synthesis of Fluvirucins
Freixas, G.; Urpí, F.; Vilarrasa, J.
Lett. Org. Chem. 2006, 3, 183-185.
50. Stereoselective Synthesis of the Western Hemisphere of Salinomycin
Larrosa, I.; Romea, P.; Urpí, F.
Org. Lett. 2006, 8, 527-530.
49. Highly stereoselective aldol reaction based on titanium enolates from (S)-1-benzyloxy-2-methyl-3-pentanone
Solsona, J. G.; Nebot, J.; Romea, P.; Urpí, F.
J. Org. Chem. 2005, 70, 6533-6536.
48. A stereoselective aldol-reduction approach to polyoxygenated natural products. Synthesis of C1-C6 fragment of erythronolides
Galobardes, M.; Gascón, M.; Romea, P.; Urpí, F.
Lett. Org. Chem. 2005, 2, 312-315.
47. Double Stereodifferentiating Aldol Reactions Based on Chiral Ketones Derived from Lactic Acid: Synthesis of C1-C6 Fragment of Erythronolides
Solsona, J. G.; Nebot, J.; Romea, P.; Urpí, F.
Synlett 2004, 2127-2130.
46. From (E)- and (Z)-ketoximes to N-sulfenylimines, ketimines or ketones at will. Application to erythronomycin derivatives
Esteban, J.; Costa, A. M.; Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 2004, 45, 5563-5567.
45. Conversion of ketoximes to ketones with trimethylphosphine and 2,2'-dipyridyl selenide
Martín, M.; Martínez, G.; Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 2004, 45, 5559-5561.
44. Stereoselective titanium-mediated syn-aldol reaction from a lactate-derived chiral ethyl ketone
Solsona, J. G.; Romea, P.; Urpí, F.
Tetrahedron Lett. 2004, 45, 5379-5382.
43. Studies Directed toward the Construction of Polypropionate Fragment of Superstolide A
Solsona, J. G.; Romea, P.; Urpí, F.
Org. Lett. 2003, 5, 4681-4684.
42. Studies on the Intramolecular CH···X (X= O, S) Interactions in (S)-N-Acyl-4-isopropyl-1,3-thiazolidine-2-thiones and Related 1,3-Oxazolidin-2-ones
Cosp, A.; Larrosa, I.; Anglada, J. M.; Bofill, J. M.; Romea, P.; Urpí, F.
Org. Lett. 2003, 5, 2809-2812.
41. Synthesis of O-Benzyl Protected anti Aldols through the Cross-Coupling Reaction of Dibenzyl Acetal with a Chiral Titanium Enolate
Cosp, A.; Larrosa, I.; Vilasís, I.; Romea, P.; Urpí, F.; Vilarrasa, J.
Synlett 2003, 1109-1112.
40. Highly Stereoselective Aldol Reaction of Titanium Enolates from Lactate-Derived Chiral Ketones
Solsona, J. G.; Romea, P.; Urpí, F.; Vilarrasa, J.
Org. Lett. 2003, 5, 519-522.
39. Unprecedented Highly Stereoselective α- and β-C-Glycosidation with Chiral Titanium Enolates
Larrosa, I.; Romea, P.; Urpí, F.; Balsells, D.; Vilarrasa, J.; Font-Bardia, M.; Solans, X.
Org. Lett. 2002, 4, 4651-4654.
38. Stereoselective synthesis of syn,syn-2-methyl-1,3-diols through one pot aldol-reduction sequence
Galobardes, M.; Mena, M.; Romea, P.; Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 2002, 43, 6145-6148.
37. β3-Amino acids by nucleophilic ring-opening of N-nosyl aziridines
Farràs, J.; Ginesta, X.; Sutton, P.; Taltavull, J.; Egeler, F.; Romea, P.; Urpí, F.; Vilarrasa, J.
Tetrahedron 2001, 57, 7665-7674.
36. From vicinal azido alcohols to Boc-amino alcohols or oxazolidinones with trimethylphosphine and Boc2O or CO2
Ariza, X.; Pineda, O.; Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 2001, 42, 4995-4999.
35. Enantiopure β-methoxy carboxyl derivatives from a chiral titanium enolate and dimethyl acetals
Cosp, A.; Romea, P.; Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 2001, 42, 4629-4631.
34. Enantioselective Addition of a Chiral Thiazolidinethione-Derived Titanium Enolate to Acetals.
Cosp, A.; Romea, P.; Talavera, P.; Urpí, F.; Vilarrasa, J.; Font-Bardia, M.; Solans, X.
Org. Lett. 2001, 3, 615-617.
33. Simple and Efficient Preparation of Enantiopure Alkyl α-Hydroxyalkyl Ketones
Ferreró, M.; Galobardes, M.; Martín, R.; Montes, T.; Romea, P.; Rovira, R.; Urpí, F.; Vilarrasa, J.
Synthesis 2000, 1608-1614.
32. Pseudoaxially Disubstituted Cyclo-β3-tetrapeptide Scaffolds
Sutton, P. W.; Bradley, A.; Farràs, J.; Romea, P.; Urpí, F.; Vilarrasa, J.
Tetrahedron 2000, 56, 7947-7958.
31. Enolization of Chiral α-Silyloxy Ketones with Dicyclohexylchloroborane. Application to Stereoselective Aldol Reactions
Galobardes, M.; Gascón, M.; Mena, M.; Romea, P.; Urpí, F.; Vilarrasa, J.
Org. Lett. 2000, 2, 2599-2602.
30. Reduction of Azides to Amines Mediated by Tin Bis(1,2-benzene dithiolate)
Bosch. I.; Costa, A. M.; Martín, M.; Urpí, F.; Vilarrasa, J.
Org. Lett. 2000, 2, 397-399.
29. A practical procedure for the preparation of carbamates from azides
Ariza, X.; Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 1999, 40, 7515-7517.
28. High-Yielding Enantioselective Synthesis of the Macrolactam Aglycon of Sch 38516 from Two Units of (2R)-2-Ethyl-4-penten-1-ol
Martín, M.; Mas, G.; Urpí, F.; Vilarrasa, J.
Angew. Chem. Int. Ed. 1999, 38, 3086-3089.
27. Reaction of Chiral Titanium Z-Enolates with Chiral α-Silyloxy Aldehydes. Syntheses of NFX-2 and Antimycinone
Esteve, C.; Ferreró, M.; Romea, P.; Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 1999, 40, 5083-5086.
26. Reaction of Achiral Titanium Z-Enolates with Chiral α-Silyloxy Aldehydes
Esteve, C.; Ferreró, M.; Romea, P.; Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 1999, 40, 5079-5082.
25. Design and synthesis of a novel cyclo-β-tetrapeptide
Sutton, P. W.; Bradley, A.; Elsegood, M. R. J.; Farràs, J.; Jackson, R. F. W.; Romea, P.; Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 1999, 40, 2629-2632.
24. One-Pot Conversion of Azides to Boc-Protected Amines with Trimethylphosphine and Boc-ON
Ariza, X.; Urpí, F.; Viladomat, C.; Vilarrasa, J.
Tetrahedron Lett. 1998, 39, 9101-9102.
23. Syntheses of the C-1 alkyl side chains of Zaragozic acids A and C
Bach, J.; Galobardes, M.; García, J.; Romea, P.; Tey, C.; Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 1998, 39, 6765-6768.
22. Simple and Efficient Preparation of Ketones from Morpholine Amides
Martín, R.; Romea, P.; Tey, C.; Urpí, F.; Vilarrasa, J.
Synlett 1997, 1414-1416.
21. Highly Stereoselective Aldol Reactions of Titanium Enolates from Ethyl α-Silyloxyalkyl Ketones
Figueras, S.; Martín, R.; Romea, P.; Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 1997, 38, 1637-1640.
20. A Simple Procedure for the Preparation of Enantiopure Ethyl α-Hydroxyalkyl Ketones
Martín, R.; Pascual, O.; Romea, P.; Rovira, R.; Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 1997, 38, 1633-1636.
19. Asymmetric Acetate Aldol Reactions in Connection with an Enantioselective Total Synthesis of Macrolactin A
González, A.; Aiguadé, J.; Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 1996, 37, 8949-8952.
18. On the Reaction of Acyl Chlorides and Carboxylic Anhydrides with Phosphazenes
Bosch, I.; González, A.; Urpí, F.; Vilarrasa, J.
J. Org. Chem. 1996, 61, 5638-5643.
17. Oxidized and Reduced Poly(2,5-di-(-2-thienyl)-pyrrole): Solubilities, Electrodissolution and Molar Mass
Brillas, E.; Carrasco, J.; Figueres, F.; Urpí, F.; Otero, T. F.
J. Electroanal. Chem. 1995, 392, 55-61.
16. Epimerisation-free Peptide Formation from Carboxylic Acid Anhydrides and Azido Derivatives
Bosch, I.; Urpí, F.; Vilarrasa, J.
J. Chem. Soc., Chem. Commun. 1995, 91-92.
15. Alternative Procedures for the Macrolactamisation of ω-Azido Acids
Bosch, I.; Romea, P.; Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 1993, 34, 4671-4674.
14. An Unexpected Reaction in the Lactamisation of 13-Azido-13-deoxy-(9S)-9 dihydroerythronolide A seco-Acid Derivatives
Bartra, M.; Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 1992, 33, 3669-3672.
13. Stereoselective Aldol Reactions of Chlorotitanium Enolates. An Efficient Method for the Assemblage of Polypropionate-Related Synthons
Evans, D. A.; Rieger, D. L.; Bilodeau, M. T.; Urpí, F.
J. Am. Chem. Soc. 1991, 113, 1047-1049.
12. New Synthetic 'Tricks'. A Novel One-Pot Procedure for the Conversion of Primary Nitro Groups into Aldehydes
Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 1990, 31, 7499-7500.
11. New Synthetic 'Tricks'. Direct Conversion of Nitro Compounds to Nitriles
Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 1990, 31, 7497-7498.
10. A New Protocol for the Direct Generation of Titanium Enolates. Diastereoselective Bond Constructions with Representative Electrophiles
Evans, D. A.; Urpí, F.; Somers, T. C.; Clark, J. S.; Bilodeau, M. T.
J. Am. Chem. Soc. 1990, 112, 8215-8216.
9. A Fast Procedure for the Reduction of Azides and Nitro Compounds Based on the Reducing Ability of Sn(SR)3- Species
Bartra, M.; Romea, P.; Urpí, F.; Vilarrasa, J.
Tetrahedron 1990, 46, 587-594.
8. Nitrosation of Hindered Amides
Romea, P.; Urpí, F.; Vilarrasa, J.
J. Org. Chem. 1989, 54, 3209-3211.
7. N-Nitrosation and N-Nitration of Lactams. From Macrolactams to Macrolactones
Torra, N.; Urpí, F.; Vilarrasa, J.
Tetrahedron 1989, 45, 863-868.
6. From Azido Acids to Macrolactams and Macrolactones
Bartra, M.; Bou, V.; García, J.; Urpí, F.; Vilarrasa, J.
J. Chem. Soc., Chem. Commun. 1988, 270-272.
5. New Synthetic 'Tricks'. [Et3NH][Sn(SPh)3] and Bu2SnH2, Two Useful Reagents for the Reduction of Azides to Amines
Bartra, M.; Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 1987, 28, 5941-5944.
4. New Synthetic 'Tricks'. Advantages of Using Triethylphosphine in Some Phosphorus-Based Reactions
Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 1986, 27, 4623-4624.
3. New Synthetic 'Tricks'. Triphenylphosphine-Mediated Amides Formation from Carboxylic Acids and Azides
García, J.; Urpí, F.; Vilarrasa, J.
Tetrahedron Lett. 1984, 25, 4841-4844.
2. Reactions of N-Nitroso and N-Nitro-N-alkylamides with Amines
García, J.; González, J.; Urpí, F.; Vilarrasa, J.
J. Org. Chem. 1984, 49, 3322-3327.
1. Evaluation of MNDO Calculated Proton Affinities
Olivella, S.; Urpí, F.; Vilarrasa, J.
J. Comput. Chem. 1984, 5, 230-236.

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