Microwave-assisted Michael-type addition of 1-(arylsulfonyl)-pyrroles and -indoles to methyl vinyl ketone using bismuth triflate as catalyst
作者:Kelsey C. Miles、Bradley J. Kohane、Benjamin K. Southerland、Daniel M. Ketcha
DOI:10.24820/ark.5550190.p010.497
日期:——
The Michael type addition of pyrroles and indoles bearing strongly electron-withdrawing N-protecting groups (e.g., arylsulfonyl-, benzoyl-) to methylvinylketone have not been previously reported. We find that such alkylative processes can be effected in low to moderate yields usingbismuthtriflate as catalyst in conjunction with microwave irradiation.