Catalytic direct-type substitution reaction of α-alkyl enolates: a Pd/Brønsted base-catalysed approach to the decarboxylative allylation of sulfonylimidates
作者:S. B. Jennifer Kan、Ryosuke Matsubara、Florian Berthiol、Shū Kobayashi
DOI:10.1039/b815845b
日期:——
mild and efficient process for the direct-type catalytic allylation of sulfonylimidates has been developed; this reaction represents the first example of Bronsted base-catalysed, in situ generation and use of alpha-alkyl enolates in substitution reactions; the success of this methodology stems from the tunable alpha-proton acidity and nucleophilicity of sulfonylimidates, which could be harnessed in the
已经开发了温和有效的磺酰酰亚胺直接型催化烯丙基化的方法。该反应代表了布朗斯台德碱催化的原位生成和在取代反应中使用α-烷基烯醇化物的第一个例子;该方法的成功源于磺基酰亚胺的可调节的α-质子酸度和亲核性,可以利用酯当量作为亲核体来实现更广泛的催化直接型反应。