A Simple Stereoselective Route to α-Trifluoromethyl Analogues of Piperidine Alkaloids
作者:Annabelle Bariau、Wahid Bux Jatoi、Pierre Calinaud、Yves Troin、Jean-Louis Canet
DOI:10.1002/ejoc.200600157
日期:2006.8
of five trifluoro-substituted analogues of mono-, di-, and trisubstituted piperidine alkaloids was accomplished in two to four steps from 2-trifluoromethyl keto-protected 4-piperidones, prepared by an intramolecular Mannich-type reaction methodology. A simple stereoselective elaboration of new 2-(trifluoromethyl)-4-piperidinols and 4-amino-2-(trifluoromethyl)piperidines is also described. (© Wiley-VCH
单、二和三取代哌啶生物碱的五种三氟取代类似物的高度非对映选择性合成是通过 2-三氟甲基酮保护的 4-哌啶酮分两到四步完成的,通过分子内曼尼希型反应方法制备。还描述了新的 2-(三氟甲基)-4-哌啶醇和 4-氨基-2-(三氟甲基) 哌啶的简单立体选择性加工。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)