Reactivity patterns of benzhydryl(mesityl)phosphane oxide – a potential intermediate in carbonyl-carbonyl coupling reactions?
作者:Nicolas D’Imperio、Anna I. Arkhypchuk
DOI:10.1080/10426507.2018.1543305
日期:2019.5.27
Abstract Benzhydryl(mesityl)phosphane oxide 2-H is prepared and its deprotonation and nucleophilicity behavior investigated. Treatment of lithium salts of 2-H with MeI results in methylation at the P-center while the benzyl carbon is not affected. Only upon double lithiation, it is possible to methylate also the benzyl carbon. Di-anion 2-2Li is reactive towards benzaldehyde to afford moderate amounts
摘要 制备了二苯甲基氧化膦2-H,并研究了其去质子化和亲核性行为。用 MeI 处理 2-H 的锂盐会导致 P 中心发生甲基化,而苄基碳不受影响。只有在双锂化时,才有可能甲基化苄基碳。Di-anion 2-2Li 对苯甲醛具有反应性,在碱性工作后提供适量的三苯乙烯。图形概要