Rhodium-catalyzed interconversion between acid fluorides and thioesters controlled using heteroatom acceptors
摘要:
A rhodium complex catalyzed the equilibrium acyl transfer reaction between acid fluorides and thioesters. In the presence of fluoride or thiolate acceptors, the reaction could be shifted to either product. RhH(PPh3)(4)-dppe catalyzed the reaction of acid fluorides and diorgano disulfides in the presence of triphenylphosphine giving thioesters, which was accompanied by triphenylphosphine difluoride. The same complex catalyzed the reaction of aryl thioesters and hexafluorobenzene giving acid fluorides, which was accompanied by 1,4-di(arylthio)-2,3,5,6-tetrafluorobenzenes. (C) 2010 Published by Elsevier Ltd.
Synthesis of acylphosphine sulfides by rhodium-catalyzed reaction of acid fluorides and diphosphine disulfides
作者:Mieko Arisawa、Toru Yamada、Masahiko Yamaguchi
DOI:10.1016/j.tetlet.2010.07.038
日期:2010.9
A rhodium complex catalyzed the reaction of acidfluorides and tetraethyldiphosphine disulfide giving acylphosphine sulfides. Aromatic acidfluorides with electron donating p-groups reacted smoothly giving the products in high yields. Aliphatic acidfluorides with secondary and tertiary α-carbons were also converted to alkanoylphosphine sulfides, whereas the reaction of a substrate with an α-methylene