Organocatalytic<i>anti</i>-Selective Mannich Reactions with Fluorinated Aldimines: Synthesis of<i>anti</i>-γ-Fluoroalkyl-γ-amino Alcohols
作者:Santos Fustero、Fatemeh Mojarrad、María Dolores Pérez Carrión、Juan F. Sanz-Cervera、José Luis Aceña
DOI:10.1002/ejoc.200900509
日期:2009.10
The asymmetric Mannich reaction between fluoroalkyl aldimines and aldehydes catalyzed by α,α-diphenylprolinol trimethylsilyl ether is reported. The corresponding Mannich adducts were reduced in situ to afford anti-β-alkyl-γ-fluoroalkyl-γ-amino alcohols in moderate yields and with very high diastereo- and enantioselectivities. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
报道了由α,α-二苯基脯氨醇三甲基甲硅烷基醚催化的氟代烷基醛亚胺和醛之间的不对称曼尼希反应。相应的曼尼希加合物被原位还原,以中等产率和非常高的非对映选择性和对映选择性提供抗-β-烷基-γ-氟烷基-γ-氨基醇。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)