Highly Enantioselective Synthesis of Fluorinated γ-Amino Alcohols through Proline-Catalyzed Cross-Mannich Reaction
作者:Santos Fustero、Diego Jiménez、Juan F. Sanz-Cervera、María Sánchez-Roselló、Elisabet Esteban、Antonio Simón-Fuentes
DOI:10.1021/ol050791f
日期:2005.8.1
A new, simple route for the synthesis of fluorinated beta-alkyl gamma-amino alcohols in optically pure form in only two steps and featuring proline catalysis from inexpensive and readily available starting materials is described. The applied strategy allows for the introduction of diversity into both the beta-fluoroalkyl and alpha-alkyl groups of these compounds. [reaction: see text]
Chiral sulfoxide controlled asymmetric additions to CN double bond. An efficient approach to stereochemically defined α-fluoroalkyl amino compounds
作者:Pierfrancesco Bravo、Maurizia Guidetti、Fiorenza Viani、Matteo Zanda、Andrey L. Markovsky、Alexander E. Sorochinsky、Irina V. Soloshonok、Vadim A. Soloshonok
DOI:10.1016/s0040-4020(98)00779-0
日期:1998.10
This paper presents a full account of studies into the asymmetric addition reactions between α-lithium derivatives of enantiomerically pure methyl and benzyl p-tolyl sulfoxides and the N-(p-methoxyphenyl)aldimines, bearing trifluoromethyl, pentafluoroethyl and ω-hydrotetrafluoroethyl groups, to afford the corresponding α-fluoroalkyl β-sulfinylamines, synthetically versatile precursors of a series of
Synthesis of fluorinated allylic amines: Reaction of 2-(trimethylsilyl)ethyl sulfones and sulfoxides with fluorinated imines
作者:Santos Fustero、Sonia Flores、Ana C. Cuñat、Diego Jiménez、Carlos del Pozo、Jorge Bueno、Juan F. Sanz-Cervera
DOI:10.1016/j.jfluchem.2007.05.006
日期:2007.10
reaction of 2-(trimethylsilyl)ethyl sulfones and sulfoxides (as vinyl anion equivalents) with imines and imino esters has been described. The process includes a TBAF-mediated fragmentation of 2-(trimethylsilyl)ethyl sulfones to afford the desired allylic amines. When the reaction is performed with the corresponding sulfoxides, the fragmentation takes place under the addition conditions, affording the final
Stereoselective Additions of α-Lithiated Alkyl-<i>p</i>-tolylsulfoxides to <i>N</i>-PMP(fluoroalkyl)aldimines. An Efficient Approach to Enantiomerically Pure Fluoro Amino Compounds
作者:Pierfrancesco Bravo、Alessandra Farina、Valery P. Kukhar、Andrey L. Markovsky、Stefano V. Meille、Vadim A. Soloshonok、Alexander E. Sorochinsky、Fiorenza Viani、Matteo Zanda、Carmela Zappalà
DOI:10.1021/jo970004v
日期:1997.5.1
Facile Preparation of Polyfluoroalkylated Aldimines from Polyfluoroalkanoic Acids
Polyfluoroalkylated aldimines were prepared by reducing polyfluoroalkyl imidoyl chlorides, which are readily available from polyfluoroalkanoic acids, with LTBA (lithium tri-tert-butoxyaluminum hydride).