Two divergent synthetic routes were developed to synthesize cyclopentenyl- & 1,5-divinyl-ketones through gold catalyzed reaction of 1,3-enynes with different types of olefins with the addition of pyridine N-oxide. A formal [3 + 2] cycloaddition occurred in the reaction of aryl olefins by using 1,3-enynes as the C3 reactants, while the C1 reactivity thereof was exhibited in the reaction with alkyl olefins
开发了两种不同的合成路线,通过
金催化 1,3-烯炔与不同类型的烯烃在添加
吡啶N-氧化物的情况下合成
环戊烯基酮和 1,5-二
乙烯基酮。使用1,3-烯炔作为C3反应物在芳基烯烃的反应中发生正式的[3+2]环加成,而在与烷基烯烃的反应中表现出其C1反应性以提供1,5-二
乙烯基酮产物。