Synthesis of 2-Amino-4,6-diarylnicotinonitriles Using Silica-Bound N-Propyl Triethylenetet

Synthesis of 2-Amino-4,6-diarylnicotinonitriles Using Silica-Bound N-Propyl Triethylenetetramine Sulfamic Acid as a Recyclable Solid Acid Catalyst

Khodabakhsh NIKNAM;Abbas JAMALI;Marzieh TAJADDOD;Abdollah DERIS

【期刊名称】《催化学报》 【年(卷),期】2012(033)008

【摘要】A simple and efficient procedure for the preparation of silica-bound N-propyl triethylenetetramine sulfamic acid (SBPTETSA) by the reaction of silica-bound N-propyl triethylenetetramine (SBPTET) with chlorosulfonic acid in chloroform is described.Silica-bound N-propyl triethylenetetramine sulfamic acid was employed as a recyclable catalyst for the synthesis of 2-amino-4,6-diarylnicotinonitriles from the multi-component reaction of an acetophenone derivative,an aromatic aldehyde,malononitrile,and ammonium acetate under solvent-free conditions at 100 ℃.The heterogeneous catalyst was recycled for five consecutive runs in the optimized multi-component reaction of 4-chloroacetophenone,4-chloroenzaldehyde,malononitrile,and ammonium acetate without significant loses to its catalytic activity. 【总页数】6页(1312-1317) 【关键词】 【

作

者

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Khodabakhsh

NIKNAM;Abbas

JAMALI;Marzieh

TAJADDOD;Abdollah DERIS

【作者单位】;;; 【正文语种】中文 【中图分类】O643 【相关文献】

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