(Michael alkylation, Mannich alkylation, and aldol alkylation) of salicylic aldehyde derivatives (2-hydroxyaryl-α,β-unsaturated ketones, 2-hydroxyarylnitroalkenes, 2-hydroxyarylimines, and salicylic aldehydes) and 2-halo-1,3-dicarbonyl compounds (diethyl α-bromomalonate, diethyl α-chloromalonate, ethyl 2-chloroacetoacetate, and 3-chloropentane-2,4-dione) were carried out under mild conditions to provide
水杨醛衍生物(2-羟基芳基-α,β-不饱和酮,2-羟基芳基硝基烯烃,2-羟基芳基嘧啶和水杨醛)的K 2 CO 3催化的多米诺反应(迈克尔烷基化,曼尼希烷基化和羟醛烷基化)和2 -卤素-1,3-二羰基化合物(α-溴丙二酸二乙酯,α-氯丙二酸二乙酯,2-氯乙酰乙酸乙酯和3-氯戊烷-2,4-二酮)在一系列条件下进行,以提供一系列官能化的2, 3-二氢苯并呋喃,产率中等至优异。新的转化同时产生了一系列具有各种取代模式的氯贝特类似物。