The regioselective synthesis and Diels-Alder cycloaddition of 3-(3,4-methylenedioxyphenyl)-5-bromo-2-pyrone provided a new synthetic route to crinine. The vinyl bromide group can be used as a handle for further derivatization.
3-(3,4-亚甲基二氧基苯基)-5-
溴-2-
吡喃酮的区域选择性合成和Diels-Alder环加成反应提供了新的克林宁合成路线。
乙烯基溴化物基团可用作进一步衍生化的处理。