diethyl (E)-2-(2-methyl-6-(4-methylphenylsulfonamido)hex-2-enyl)-2-(prop-2-ynyl)malonate 在
silver hexafluoroantimonate 、 MeO-DTBM-BIPHEP(AuCl)2 作用下,
以
间二甲苯 为溶剂,
以75%的产率得到diethyl (4aR,8aR)-8a-methyl-5-methylene-1-tosyloctahydroquinoline-7,7(1H)-dicarboxylate