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Recyclable alkylated fac-Ir(ppy)(3) complex as a visible-light photoredox catalyst for the synthesis of 3-trifluoromethylated and 3-difluoroacetylated coumarins

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Indexed by:期刊论文

First Author:Zhang, Xiaodan

Correspondence Author:Li, YM; Duan, CY (reprint author), Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China.

Co-author:Li, Yaming,Hao, Xinyu,Jin, Kun,Zhang, Rong,Duan, Chunying

Date of Publication:2018-12-20

Journal:TETRAHEDRON

Included Journals:SCIE、Scopus

Volume:74

Issue:51

Page Number:7358-7363

ISSN No.:0040-4020

Key Words:Photocatalysis; Thermomorphic multicomponent solvent; Catalyst recycle; Trifluoromethylation; Difluroacetylation

Abstract:A recyclable fac-tris(heptadecanyl-2-phenylpyridine) iridium [fac-Ir(hdppy)(3)] photocatalyst was synthesized. The hexane-phase-selective solubility of fac-Ir(hdppy)(3) in a thermomorphic multicomponent solvent (TMS) allowed its easy recycling by automatic liquid/liquid separation at room temperature. The excellent catalytic and recoverable activities of fac-Ir(hdppy)(3) were demonstrated via trifuoromethylation and difluoroacetylation reactions of phenyl 3-phenylpropiolate under visible-light irradiation in a TMS system. (C) 2018 Elsevier Ltd. All rights reserved.

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