Facile Cleavage of Si−C Bonds during the Sol-Gel Hydrolysis of Aminomethyltrialkoxysilanes− A New Method for the Methylation of Primary Amines
作者:Augustin Adima、Catherine Bied、Joël J. E Moreau、Michel Wong Chi Man
DOI:10.1002/ejoc.200400079
日期:2004.6
silica and (1R,2R)-bis(dimethylamino)cyclohexane (3) were obtained. This reaction was exploited to propose a new route for the methylation of amines. Such methylation reaction of amines could be extended to other amines and provides a new method for the selective monomethylation of primary amines. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)
氯甲基三乙氧基硅烷与 (1R,2R)-双(甲基氨基)环己烷 (1) 的反应得到相应的双硅烷化化合物 2。由于定量的 Si-C 键,2 的溶胶-凝胶水解没有得到预期的桥接倍半硅氧烷解理。相反,获得了二氧化硅和 (1R,2R)-双(二甲氨基)环己烷 (3)。利用该反应提出了胺甲基化的新途径。这种胺的甲基化反应可以扩展到其他胺类,为伯胺的选择性单甲基化提供了一种新方法。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)