作者:Erli Sugiono、Heiner Detert
DOI:10.1055/s-2001-13420
日期:——
A short route for the synthesis of 2,5-diaryl-1,3,4-oxadiazoles with rigid connections to alkoxysilanes 7, 8, 9 via Heck reaction of the bromo compound 3 with vinylalkoxysilanes 4, 5, 6, and also via palladium-catalysed vinylation to the styrene 11 and cross-metathesis with vinyl silanes is described. An extension of the conjugated system to 14 is possible with silyl-substituted styrene 13.
通过Heck反应,以溴化合物3与乙烯基烷氧基硅烷4、5、6反应,以及通过钯催化的乙烯基化反应与苯乙烯11和与乙烯基硅烷的交叉复分解反应,描述了制备具有刚性连接到烷氧基硅烷7、8、9的2,5-二芳基-1,3,4-噁二唑的短路线。通过硅烷取代的苯乙烯13,可以将共轭系统扩展到14。