作者:N. Ya. Grigorieva、A. G. Smirnov、V. A. Popovsky、A. V. Stepanov
DOI:10.1007/s11172-010-0008-4
日期:2009.2
A condensation of α,β-unsaturated aldehydes with O-protected 4-hydroxybutanal N-(tert-butyl)-imine has been exemplified for the first time using (E)-cinnamic and (E)-4-methoxycinnamic aldehydes. (E,E)-2,5-Disubstituted penta-2,4-dienals, which are key intermediates in the synthesis of strobilurins A and X, were prepared in good yields and close to 100% stereoselectivity.
首次以(E)-肉桂醛和(E)-4-甲氧基肉桂醛为例,展示了α,β-不饱和醛与O-保护的4-羟基丁醛N-(叔丁基)亚胺的缩合反应。(E,E)-2,5-二取代戊-2,4-二烯醛是合成嘧菌环胺A和X的关键中间体,它们以良好的产率和接近100%的立体选择性被制备出来。