Formation of 1,4-diketones via bis-acylation of the conjugated carbon–carbon double bonds in acrylates, acrylamides, methyl vinyl ketone and styrenes with aroyl chlorides promoted by samarium metal in DMF
作者:Yongjun Liu、Yongmin Zhang
DOI:10.1016/j.tet.2003.08.038
日期:2003.10
Promoted by samarium in DMF, aroyl chlorides react readily with conjugated carbon–carbondoublebonds in acrylates, acrylamides, methyl vinyl ketone and styrenes in a bis-acylation manner. These reactions proceed smoothly under mild conditions without the need of pretreating or activating the metallic samarium, affording the corresponding 1,4-diketones in good to excellent yields.
A new strategy for the synthesis of α,β-diaroylpropionates promoted by samarium metal in DMF
作者:Yongjun Liu、Xi Liu、Yongmin Zhang
DOI:10.1016/s0040-4039(03)00030-3
日期:2003.2
When promoted by samarium in DMF, aroyl chlorides react readily with acrylates to afford alpha,beta-diaroylpropionates in good to excellent yields without pretreating or activating the metallic samarium. (C) 2003 Elsevier Science Ltd. All rights reserved.