Synthesis and reduction of 2,2-diaryl-1-nitroethylenes by using a chiral and a non chiral NADH model in the pyrrolopyridine series
作者:Vincent Levacher、Claude Valque、Sophie Coupa、Georges Dupas、Guy Quéguiner、Jean Bourguignon
DOI:10.1002/jhet.5570330435
日期:1996.7
Reduction of 2,2-diphenyl-1-nitroethylene (1) and 2-(2-pyridyl)-2-phenyl-1-nitroethylene (5) is achieved by using the NADH model in the pyrrolopyridine series 2a to give 2,2-diphenyl-1-nitroethane (3) and 2-(2-pyridyl)-2-phenyl-1-nitroethane (7) respectively in 40% yield. The asymmetric reduction of 2-(2-pyridyl)-2-phenyl-1-nitroethylene by the chiral NADH model 2b is studied. Thus, 2-(2-pyridyl)-
通过使用吡咯并吡啶系列2a中的NADH模型还原2,2-二苯基-1-硝基乙烯(1)和2-(2-吡啶基)-2-苯基-1-硝基乙烯(5),得到2,2 -二苯基-1-硝基乙烷(3)和2-(2-吡啶基)-2-苯基-1-硝基乙烷(7),产率分别为40%。研究了手性NADH模型2b对2-(2-吡啶基)-2-苯基-1-硝基乙烯的不对称还原。因此,以15至32%的产率获得2-(2-吡啶基)-2-苯基-1-硝基乙烷(7)。还原的立体控制被证明取决于镁离子的量。