Tandem phospha-Michael addition/cyclization/dehydration of 2-hydroxychalcones with H-phosphine oxides for the synthesis of 4-phosphorylated 4H-chromenes

Author:

Wen Zhong1,Yang Kai-Cheng1,Zheng Shi-Lu1,Zhang Yu-Shan1,Wang Sheng-Jun1,Ni Hai-Liang2,Chen Long1ORCID

Affiliation:

1. Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, P. R. China

2. College of Chemistry and Materials Science, Sichuan Normal University, 5 Jing An Road, Chengdu 610066, P. R. China

Abstract

A Hg(OTf)2-catalyzed tandem phospha-Michael addition/cyclization/dehydration of 2-hydroxychalcones with H-phosphine oxides was reported, which allowed construction of C–P and C–O bonds in newly generated 4-phosphorylated 4H-chromenes in good yields.

Funder

Natural Science Foundation of Sichuan Province

National Natural Science Foundation of China

Publisher

Royal Society of Chemistry (RSC)

Subject

Organic Chemistry,Physical and Theoretical Chemistry,Biochemistry

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