1,3-Dibromo-5,5-dimethylhydantoin(DBH)/kaolin:An efficient reagent system for the synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes under solvent-free conditions期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

1,3-Dibromo-5,5-dimethylhydantoin(DBH)/kaolin:An efficient reagent system for the synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes under solvent-free conditions

Authors:	Farhad Shirinia Nader Ghaffari Khaligha Gholam Hossein Imanzadehb Parisa Ghods Ghasem-Abadia b a

Affiliation:	Department of Chemistry, College of Science, University of Guilan, Rasht, 41335-19141, Iran. ; Department of Chemistry, College of Science, University of Mohaghegh-Ardabili, Ardabil, Iran.

Abstract:	1,3-Dibromo-5,5-dimethylhydantoin, has been used as an efficient catalyst for the synthesis of 14-aryl-14H-dibenzo [a, j] xanthenes in the presence of Kaolin. All reactions are performed in the absence of solvent in relatively short reaction times in good to high yields.

Keywords:	Kaolin 1 3-Dibromo-5 5-dimethylhydantoin Xanthene derivatives Solvent-free conditions
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