enzene. Acid fluorides were converted into acylphosphine sulfides and thioesters using diphosphine disulfides and disulfides/triphenylphosphine, respectively. Aryl esters were obtained fromacid fluorides and phenols in the presence of triphenylsilane. Aryl esters, acylphosphine sulfides, and thioesters were also interconverted in the presence of rhodium complexes. These rhodium-catalyzed acyl transfer
1,5-Hydride shifts in vinyl cation intermediates produced upon the acylation of acetylenes
作者:M. I. Kanishchev、A. A. Shegolev、W. A. Smit、Ronald Caple、Michael J. Kelner
DOI:10.1021/ja00513a034
日期:1979.9
A new method for making acyl fluorides using BrF3
作者:Or Cohen、Revital Sasson、Shlomo Rozen
DOI:10.1016/j.jfluchem.2005.12.033
日期:2006.3
While many carboxylic acids could be converted directly to acyl fluorides by using BrF3, the reaction with acyl chlorides was found to be of a more general nature and yields better results. Surprisingly, reacting t-butyl esters with brominetrifluoride also resulted in acyl fluorides in reasonable yields. The reactions were completed in a few seconds at 0 °C.
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