A facile and convenient reaction of o-alkynylisocyanobenzenes with various active-methylene compounds, including 1,3-diesters, 1,3-diketones, β-keto esters, and β-keto amides, under Brønsted basic conditions, has been developed. Diethyl malonate reacted smoothly with a collection of o-alkynylisocyanobenzenes to provide the corresponding 2-quinolin-2-yl malonates in excellent yields. Acetylacetone gave
已经开发了在布朗斯台德碱性条件下,邻炔基异
氰基苯与各种活性亚甲基化合物(包括 1,3-二酯、1,3-二酮、β-
酮酯和 β-酮酰胺)的简便反应。
丙二酸二乙酯与一组邻炔基异
氰基苯顺利反应,以优异的收率提供相应的 2-quinolin-2-yl
丙二酸酯。
乙酰丙酮得到 quinolin-4-yl 和 quinolin-2-yl 衍
生物的混合物。
乙酰乙酸酯和乙酰乙酰酰胺衍
生物最初产生 2-quinolin-2-yl 加合物,该加合物在反应条件下经历了部分脱乙酰化。