Ammonium persulphate promoted synthesis of polyethylene glycol entrapped potassium tribromide and its application in acylation and bromination of some selective organic compounds

Citation: Rupa Rani Dey, Siddhartha Sankar Dhar. Ammonium persulphate promoted synthesis of polyethylene glycol entrapped potassium tribromide and its application in acylation and bromination of some selective organic compounds[J]. Chinese Chemical Letters, 2013, 24(10): 866-868. shu

Ammonium persulphate promoted synthesis of polyethylene glycol entrapped potassium tribromide and its application in acylation and bromination of some selective organic compounds

Rupa Rani Dey ,
Siddhartha Sankar Dhar ^,

通讯作者: Siddhartha Sankar Dhar,

基金项目:

Technology, DST, New Delhi, India, for financial assistance received through a SERC fast track project (No. SR/FTP/CS-100/2007). (No. SR/FTP/CS-100/2007)

摘要: In this study, a new method of synthesis of polyethylene glycol supported potassium tribromide (PEG KBr₃) and its application in acylation and bromination reactions are reported. Ammonium persulphate oxidizes KBr to the corresponding tribromide which is entrapped by polyethylene glycol leading to stable PEG KBr₃. The reagent is proved to be highly efficient for the acylation of variety of alcohols and bromination of activated aromatic substrates. Themethod is a mild, one pot reaction and involves no use of toxic reagents.

关键词:

English

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