AbstractA facile parallel synthesis of 3,5-diaryl-2,6-dicyanoanilines via three-component reaction of aryl aldehydes, acetophenone derivatives, and malononitrile under thermal green solvent-free conditions in the presence of potassium carbonate and also potassium bicarbonate without using any hazardous materials is described. Graphical abstract
A facile and efficient synthesis of polysubstituted benzenes has been developed via sequential Michael addition, Knoevenagel condensation and nucleophilic cyclization reactions of readily available chalcones with active methylene compounds in guanidinium ionic liquids.
One-pot three component synthesis of 3,5-disubstituted 2,6-dicyanoaniline derivatives using 4-dimethylaminopyridine (DMAP) as a catalyst
作者:Suchandra Bhattacharjee、Abu T. Khan
DOI:10.1016/j.tetlet.2016.05.097
日期:2016.7
An efficient synthetic protocol was devised for the synthesis of 3,5-disubstituted 2,6-dicyanoaniline from malononitrile, aldehydes, and β-nitro-olefins by using N,N-dimethyl-4-aminopyridine (DMAP) as a nucleophilic catalyst. The important aspects of the present methodology are: use of non-toxic organo-catalyst, shorter reaction time, compatibility with wide range of substrates, and good yields.
An Efficient and Facile Synthesis of 2-Amino-4,6-diarylbenzene-1,3-dicarbonitrile and 1,2-Dihydro-2-oxo-4,6-diarylpyridine-3-carbonitrile under Solvent-free Conditions
作者:Liangce Rong、Xiaoyue Li、Haiying Wang、Daqing Shi、Shujiang Tu
DOI:10.1246/cl.2006.1314
日期:2006.11
A one-pot three-component condensation of aromatic aldehyde, aromatic ketone, and malononitrile leading to an efficient synthesis of 2-amino-4,6-diarylbenzene-1,3-dicarbonitrile and 1,2-dihydro-2-oxo-4,6-diarylpyridine-3-carbonitrile has been carried out in a mortar just by grinding or heating under solvent-free conditions. Compared with the classical reaction conditions, these new synthetic methods have the advantages of excellent yields, shorter reaction time, and mild reaction conditions.
Efficient One‐Pot Synthesis of 2‐Amino‐4,6‐diarylbenzene‐1,3‐dicarbonitrile under Solvent‐Free Conditions
作者:Liangce Rong、Hongxia Han、Fang Yang、Hao Yao、Hong Jiang、Shujiang Tu
DOI:10.1080/00397910701569684
日期:2007.10.1
Abstract A facile parallel synthesis of 2‐amino‐4,6‐diarylbenzene‐1,3‐dicarbonitrile derivatives via a one‐pot reaction of aromatic aldehydes, aromatic ketone, and malononitrile under solvent‐free conditions has been developed. This new protocol has the advantages of shorter time, higher yields, lower cost, and environmental friendliness.