Multicatalytic synthesis of 1,2-dihydroisoquinolin-1-ylphosphonates via a tandem four-component reaction
作者:Haibo Zhou、Hanpeng Jin、Shengqing Ye、Xiaodan He、Jie Wu
DOI:10.1016/j.tetlet.2009.05.106
日期:2009.8
A tandem four-component reaction of 2-bromobenzaldehyde, alkyne, amine, and diethyl phosphite catalyzed by the combination of palladium and copper salts provides a facile and efficient route to 1,2-dihydroisoquinolin-1-ylphosphonate. A cascade Sonogashira-intramolecular cyclization-nucleophilic addition may be involved in the reaction process.
钯和铜盐的组合催化2-溴苯甲醛,炔烃,胺和亚磷酸二乙酯的串联四组分反应为1,2-二氢异喹啉-1-基膦酸酯的合成提供了一种简便而有效的途径。反应过程可能涉及级联Sonogashira-分子内环化-亲核加成。