Asymmetric synthesis of α-substituted nitriles and cyanohydrins by oxidative cleavage of chiral aldehyde hydrazones with magnesium monoperoxyphthalate
作者:Dieter Enders、Andrew Plant、Dirk Backhaus、Ulrich Reinhold
DOI:10.1016/0040-4020(95)00647-q
日期:1995.9
Optically active α- and α,β-substituted aldehyde hydrazones 2, 4, and 7, which are readily available by asymmetric alkylation. Michael addition or [2,3]-Wittig rearrangement of chiral hydrazones can be transformed into nitriles 3 and 5 or cyanohydrins 8 by MMPP mediated oxidation, respectively. This synthetic sequence offers a C-C connective entry into optically active functionalised nitriles with