作者:Pavel Mykhailiuk、Oleksandr Geraschenko、Pavel Khodakovskiy、Oleg Shishkin、Olga Zaporozhets、Andrey Tolmachev
DOI:10.1055/s-0030-1260003
日期:2011.5
C-Acylation of N-substituted imidazoles with ethyl oxalyl chloride in the presence of N,N-diisopropylethylamine as a base afforded 2-(2-ethoxy-1,2-dioxoethyl)imidazoles in 83-95% yield. Application of this synthetic protocol to thiazoles and triazoles led to the corresponding 2-ethoxy-1,2-dioxoethyl derivatives in 40-51% yield.
在N,N-二异丙基乙胺作为碱的存在下,N-取代咪唑与乙氧基草酰氯进行C-酰化反应,得到了产率为83-95%的2-(2-乙氧基-1,2-二氧乙基)咪唑。应用这一合成方案于噻唑和三唑,分别得到了相应产率为40-51%的2-乙氧基-1,2-二氧乙基衍生物。