作者:Xudong Wei、Richard J.K Taylor
DOI:10.1016/s0040-4039(98)00592-9
日期:1998.5
alcohols can be oxidised with activated manganese dioxide in the presence of stabilised Wittig reagents to generate α,β-unsaturated esters directly. This simple procedure, which can also be utilised with diols to give double homologation, is generally useful and particularly valuable if the intermediate aldehydes are difficult to isolate, toxic or prone to isomerisation.
烯丙醇,炔丙醇和苄醇可以在稳定的Wittig试剂存在下用活化的二氧化锰氧化,以直接生成α,β-不饱和酯。如果中间体醛难以分离,有毒或易于异构化,这种简单的方法(也可以与二醇一起使用以提供双重同系物)通常是有用的,并且特别有价值。