One-pot four-component synthesis of 2-aryl-3,3-dihaloacrylonitriles using potassium hexacyanoferrate(II) as environmentally benign cyanide source
作者:Zhouxing Zhao、Zheng Li
DOI:10.1590/s0103-50532011000100020
日期:——
An efficient route to one-pot four-component reactions of aroyl chlorides, potassium hexacyanoferrate(II), triphenylphosphine and carbon tetrahalides to synthesize 2-aryl-3,3-dichloroacrylonitriles and 2-aryl-3,3-dibromoacrylonitriles was described. This protocol has advantages of use of non-toxic cyanide source, high yield and simple work-up procedure.
Solvent-Free Chemoselective Cyanation of α,α-Dibromoacetophenones Using Potassium Hexacyanoferrate(II) as an Eco-Friendly Cyanide Source
作者:Zhouxing Zhao、Zheng Li
DOI:10.1002/ejoc.201000848
日期:——
A chemoselective route for the synthesis of 2-aryl-3,3-di-bromoacrylonitriles by solvent-freecyanation of α,α-dibromoacetophenones by usingpotassiumhexacyanoferrate(II) as an eco-friendlycyanidesource is developed. The merits of this procedure include avoiding the use of a strong toxic cyanidesource, a catalyst, and volatile organic solvents and the high yields of the products.
开发了使用六氰基高铁酸钾 (II) 作为环保氰化物源,通过 α,α-二溴苯乙酮的无溶剂氰化合成 2-芳基-3,3-二溴丙烯腈的化学选择性路线。该程序的优点包括避免使用剧毒的氰化物源、催化剂和挥发性有机溶剂以及产品的高产率。