N-Alkylation of poor nucleophilic amine and sulfonamide derivatives with alcohols by a hydrogen autotransfer process catalyzed by copper(II) acetate
作者:Ana Martínez-Asencio、Diego J. Ramón、Miguel Yus
DOI:10.1016/j.tetlet.2009.11.009
日期:2010.1
Copper(II) acetate is a versatile, cheap, and simple catalyst for the selective N-monoalkylation of amino derivatives with poor nucleophilic character, such as aromatic and heteroaromatic amines as well as sulfonamides, using in all cases primary alcohols as initial source of the electrophiles, through a hydrogen autotransfer process. In the case of sulfonamides, the monoalkylation process followed
乙酸铜(II)是一种通用,廉价且简单的催化剂,用于在所有情况下均使用伯醇作为苯酚的初始来源,以对具有不良亲核特性的氨基衍生物(例如芳族和杂芳族胺以及磺酰胺)进行选择性N-单烷基化。亲核试剂,通过氢自动转移过程。在磺酰胺的情况下,单烷基化过程随后是萘催化的还原性脱保护得到伯胺,这是氨直接单烷基化的间接替代方法。