Highly Selective Synthesis of Chlorophenols under Microwave Irradiation

Oxychlorination of various phenols is finished in 60 minutes with high efficiency and perfect selectivity under microwave irradiation. These reactions adopt copper(II) chloride (CuCl2) as the catalyst and hydrochloric acid as chlorine source instead of expensive and toxic ones. Oxychlorination of ph...

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Main Authors: Yawen Xiong, Hongdong Duan, Xia Meng, Zhaoyun Ding, Weichun Feng
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2016/2960414
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author Yawen Xiong
Hongdong Duan
Xia Meng
Zhaoyun Ding
Weichun Feng
author_facet Yawen Xiong
Hongdong Duan
Xia Meng
Zhaoyun Ding
Weichun Feng
author_sort Yawen Xiong
collection DOAJ
description Oxychlorination of various phenols is finished in 60 minutes with high efficiency and perfect selectivity under microwave irradiation. These reactions adopt copper(II) chloride (CuCl2) as the catalyst and hydrochloric acid as chlorine source instead of expensive and toxic ones. Oxychlorination of phenols substituted with electron donating groups (methyl, methoxyl, isopropyl, etc.) at ortho- and meta-positions is accomplished with higher conversion rates, lower reaction time, and excellent selectivity. A proposed reaction mechanism is deduced; one electron transfers from CuCl2 to phenol followed by the formation of tautomeric radical that can be rapidly captured by chlorine atom and converts into para-substituted product.
format Article
id doaj-art-23f8041bec0445a6879cb6433a217a54
institution Kabale University
issn 2090-9063
2090-9071
language English
publishDate 2016-01-01
publisher Wiley
record_format Article
series Journal of Chemistry
spelling doaj-art-23f8041bec0445a6879cb6433a217a542025-02-03T05:52:13ZengWileyJournal of Chemistry2090-90632090-90712016-01-01201610.1155/2016/29604142960414Highly Selective Synthesis of Chlorophenols under Microwave IrradiationYawen Xiong0Hongdong Duan1Xia Meng2Zhaoyun Ding3Weichun Feng4School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan 250353, ChinaSchool of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan 250353, ChinaSchool of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan 250353, ChinaSchool of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan 250353, ChinaChemical Technology Academy of Shandong Province, Jinan 250014, ChinaOxychlorination of various phenols is finished in 60 minutes with high efficiency and perfect selectivity under microwave irradiation. These reactions adopt copper(II) chloride (CuCl2) as the catalyst and hydrochloric acid as chlorine source instead of expensive and toxic ones. Oxychlorination of phenols substituted with electron donating groups (methyl, methoxyl, isopropyl, etc.) at ortho- and meta-positions is accomplished with higher conversion rates, lower reaction time, and excellent selectivity. A proposed reaction mechanism is deduced; one electron transfers from CuCl2 to phenol followed by the formation of tautomeric radical that can be rapidly captured by chlorine atom and converts into para-substituted product.http://dx.doi.org/10.1155/2016/2960414
spellingShingle Yawen Xiong
Hongdong Duan
Xia Meng
Zhaoyun Ding
Weichun Feng
Highly Selective Synthesis of Chlorophenols under Microwave Irradiation
Journal of Chemistry
title Highly Selective Synthesis of Chlorophenols under Microwave Irradiation
title_full Highly Selective Synthesis of Chlorophenols under Microwave Irradiation
title_fullStr Highly Selective Synthesis of Chlorophenols under Microwave Irradiation
title_full_unstemmed Highly Selective Synthesis of Chlorophenols under Microwave Irradiation
title_short Highly Selective Synthesis of Chlorophenols under Microwave Irradiation
title_sort highly selective synthesis of chlorophenols under microwave irradiation
url http://dx.doi.org/10.1155/2016/2960414
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AT zhaoyunding highlyselectivesynthesisofchlorophenolsundermicrowaveirradiation
AT weichunfeng highlyselectivesynthesisofchlorophenolsundermicrowaveirradiation