Silica Gel Promotes Cascade Synthesis of 2-(Heteroaryl)acetamide Derivatives from Isocyanides, Dialkylamines, and Heteroarylcarbaldehydes
作者:Ali Ramazani、Aram Rezaei、Amir Mahyari、Morteza Rouhani、Mehdi Khoobi、Elham Yaaghubi、Hana Shabrendi、Esmail Vessally、Vahid Azizkhani、Issa Amini、Hamed Lashgari、Ghafar Noohi、Zahra Shaghaghi、Fariba Sadri
DOI:10.1080/00397911.2010.486509
日期:2011.4.19
[image omitted] Addition of an isocyanide to an iminium ion intermediate that forms from the reaction between a heteroarylcarbaldehyde and a secondary amine leads to formation of sterically congested 2-(heteroaryl)acetamide derivatives in the presence of silica gel at room temperature. The structures of the products were deduced from their 1H NMR, 13C NMR, and infrared spectra and mass spectrometry.