Catalytic Transamidation Reactions Compatible with Tertiary Amide Metathesis under Ambient Conditions
作者:Nickeisha A. Stephenson、Jiang Zhu、Samuel H. Gellman、Shannon S. Stahl
DOI:10.1021/ja8094262
日期:2009.7.29
present study reveals that simple zirconium- and hafnium-amido complexes are highly efficient catalysts for equilibrium-controlled transamidation reactions between secondary amines and tertiary amides. In a number of cases, transamidation proceeds rapidly at room temperature. We find that these new catalysts are sufficiently active to promote the metathesis of tertiary amides, which arises from successive
Manganese/cobalt-catalyzed oxidative C(sp<sup>3</sup>)–H/C(sp<sup>3</sup>)–H coupling: a route to α-tertiary β-arylethylamines
作者:Meiling Tan、Kaizhi Li、Jiangliang Yin、Jingsong You
DOI:10.1039/c7cc08512e
日期:——
An oxidative coupling reaction of an α-C(sp3)–H bond of amine with a benzylic C(sp3)–H bond provides diverse collections of α-tertiary β-arylethylamines.
Lanthanum trifluoromethanesulfonate is an effective single-component catalyst for synthesizing a variety of amides directly from esters and amines under mild conditions. Highly selective amidation of esters and amines, as well as catalyst-controlled amidation of esters, demonstrated the effectiveness of the catalyst system.