A new synthetic method for dimethyl 2,3-dihydrobenzo[b]oxepine-2,4-dicarboxylates and methyl 2-(2-carbomethoxybenzo[b]furan-3-yl)propanoates by an intramolecular conjugate displacement reaction or an $S_N2$ reaction of acetates of Morita-Baylis-Hillman adducts of methyl (2-formylphenoxy)acetates has been described.
描述了一种新的合成方法,通过分子内共轭取代反应或
$S_N2$反应,利用甲基(2-甲醛苯氧基)
乙酸酯的Morita-Baylis-Hillman加成物的
乙酸酯,制备了二甲基2,3-二氢苯并[b]氧杂
环庚烯-2,4-二
羧酸酯和甲基2-(2-羧甲基苯并[b]
呋喃-3-基)
丙酸酯。