First Application of Air-Stable and Reusable Phosphine-Containing Calix[4]arene in Catalytic Aza-Morita-Baylis-Hillman Reaction
作者:Weihui Zhong、Yemin Zheng、Jiadi Zhou、Yanyan Shen
DOI:10.1055/s-0030-1259068
日期:2010.12
For the first time, the aza-Morita-Baylis-Hillman reaction of N-sulfonated imines with methyl vinyl ketone was catalyzed by 5,11,17,23-tetrabutyl-25-(diphenylphosphinomethoxy)-26,27,28-trihydroxycalix[4]arene (LB1), an air-stable, easily isolated and reusable catalyst. Great acceleration of the reaction was observed and the aza-Morita-Baylis-Hillman adducts were produced in excellent yields within short reaction time.
首次使用5,11,17,23-四丁基-25-(二苯基膦甲氧基)-26,27,28-三羟基杯芳烃(LB1)催化N-磺酸化亚胺与甲基乙烯酮的氮烯-Morita-Baylis-Hillman反应。这是一种空气稳定、易于分离和可重复使用的催化剂。观察到反应速率显著加快,氮烯-Morita-Baylis-Hillman附加物在短时间内以优异的产率生成。