Zeinalabedin Sepehr

TL;DR: In this article, a facile, green, efficient and environment-friendly protocol for the synthesis of 14-aryl or alkyl-14Hdibenzo[a,j]xanthene, 1,8-dioxooctahydroxanthene and 12-aryl-8,9,10,12-tetrahydrobenzo [a]xANThene-11-one have been developed by one-pot condensation of various aldehydes with (i) -naphthol (ii) cyclic 1

TL;DR: In this paper, a simple, efficient, and environmentally benign route was developed for the preparation of 14-aryl or alkyl-14H-dibenzo[a,j]xanthene, 1,8-dioxo-octahydroxanthene and 12-aryl.

TL;DR: An efficient synthesis of 1,2,4,5-tetrasubstituted imidazoles is achieved by four component cyclocondensation of benzil or benzoin, aniline or benzyl amine, aldehyde and ammonium acetate under solvent-free conditions as discussed by the authors.

TL;DR: An efficient synthesis of 2,4,5-trisubstituted imidazoles is achieved by three component cyclocondensation of benzil or benzoin, aldehyde and ammonium acetate by using a novel polymeric catalyst [poly(AMPS-co-AA)] under solvent-free conditions as mentioned in this paper.

TL;DR: The present approach offers several advantages such as short reaction times, easy isolation and purification of product, and safe, non-toxic, recyclable and economic use of catalyst.