Department of Chemistry, Université Laval, Québec, Canada.
Org Biomol Chem. 2012 Feb 7;10(5):988-93. doi: 10.1039/c1ob06512b. Epub 2011 Dec 7.
The preparation of 1,3,4-oxadiazoles from 1,2-diacylhydrazines using XtalFluor-E ([Et(2)NSF(2)]BF(4)) as cyclodehydration reagent is described. Various functionalized 1,3,4-oxadiazoles were synthesized and it was found that the use of acetic acid as an additive generally improved the yields.
本文描述了使用 XtalFluor-E([Et(2)NSF(2)]BF(4))作为环脱水试剂,由 1,2-二酰肼制备 1,3,4-噁二唑。合成了各种功能化的 1,3,4-噁二唑,并发现使用乙酸作为添加剂通常可以提高产率。