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

…, NG Khaligh, GH Imanzadeh, PG Ghasem-Abadi

Index: Shirini, Farhad; Khaligh, Nader Ghaffari; Ghasem-Abadi, Parisa Ghods; Imanzadeh, Gholam Hossein Chinese Chemical Letters, 2012 , vol. 23, # 10 p. 1145 - 1148,4

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Citation Number: 5

Abstract

The xanthene derivatives, especially benzoxanthenes, have wide range of biological and therapeutic properties [1], [2], [3], [4] and [5]. Furthermore, due to their useful spectroscopic properties, they were used as dyes [6], in laser technologies [7], and in fluorescent materials for visualization of biomolecule [8]. Many procedures describe the synthesis of xanthenes and benzoxanthenes including cyclodehydrations [9], [10], [11], [12] and [13]. In addition, 14H-dibenzo[a,j] ...