Substituted homoallenyl aldehydes and their derivatives. Part 1: Homoallenyl aldehydes and protected hydrazones
作者:Juraj Galeta、Stanislav Man、Milan Potáček
DOI:10.2478/s11696-012-0215-6
日期:2013.1.1
The paper presents a simple synthesis of substituted propargyl vinyl ethers and their subsequent thermally-initiated Claisen rearrangement leading to various 3-substituted homoallenyl aldehydes. Several methods, including Sonogashira coupling, base-promoted substitution on the triple bond by sodium amide or butyllithium, and the preparation of substituted propargyl alcohols, were used in the initial
该论文提出了取代的炔丙基乙烯基醚的简单合成及其随后的热引发的克莱森重排,从而产生了各种3-取代的均烯丙基醛。在初始步骤中,使用了几种方法,包括Sonogashira偶联,酰胺基或丁基锂在三键上进行碱促进的取代,以及制备取代的炔丙醇。合成了磷酸盐保护的高烯丙基醛aldehyde衍生物并对其进行了全面表征。使用X射线分析建立了令人惊讶的同时提供顺式和反式异构体的9-蒽甲醛甲醛的立体化学。