A facile and efficient method for the synthesis of N-substituted-3-oxoisoindoline-1-carbonitrile derivatives catalyzed by sulfamic acid
作者:Ling-Jun Hu、Zha-Jun Zhan、Min Lei、Li-Hong Hu
DOI:10.3998/ark.5550190.0014.315
日期:——
A new and efficientmethod for the synthesis of N-substituted 3-oxoisoindoline-1-carbonitrile derivatives by a one-pot, three-component condensation reaction of 2-carboxybenzaldehyde, primary amine, and TMSCN in the presence of 10 mol % sulfamicacid (NH2SO3H) as the catalyst in EtOH under reflux temperature is described. The process is simple and environmentally benign and the catalyst is commercially
Sc(OTf)3-catalyzed three-component cascade reaction: One-pot synthesis of substituted 3-oxoisoindoline-1-carbonitrile derivatives
作者:Tingting Chen、Chun Cai
DOI:10.1016/j.catcom.2015.11.011
日期:2016.1
A facile and efficient approach for the synthesis of N-substituted 3-oxoisoindoline-1-carbonitrile derivatives has been developed, with a Sc(OTf)(3)-catalyzed three-component Strecker/Lactamization cascade reaction involving methyl 2-formylbenzoate, TMSCN and amines in ethanol at room temperature. Good to excellent yields for a broad scope of amine substrates were achieved. (C) 2015 Published by Elsevier B.V.