Synthesis of Calothrixins and Its Analogs Using FeCl<sub>3</sub>-Mediated Domino Reaction Protocol
作者:Bose Muthu Ramalingam、Velu Saravanan、Arasambattu K. Mohanakrishnan
DOI:10.1021/ol4015738
日期:2013.7.19
A novel one pot synthesis of calothrixin B and its analogs is achieved involving an FeCl3-mediated domino reaction of enamines in dry DMF at reflux. Alternatively, the enamines upon interaction with CuBr2 in DMF at reflux led to the formation of 1-phenylsulfony-2-(2'-nitroaryl)-4-hydroxycarbazole-3-carbaldehydes in excellent yields.