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Heteroleptic copper(I) complexes as energy transfer photocatalysts for the intermolecular [2 + 2] photodimerization of chalcones, cinnamates and cinnamamides.

Authors :
Wu, Qing-An
Ren, Chen-Chao
Chen, Feng
Wang, Tian-Qi
Zhang, Yu
Liu, Xue-Fen
Chen, Jian-Bin
Luo, Shu-Ping
Source :
Tetrahedron Letters: International Organ for the Rapid Publication of Preliminary Communications in Organic Chemistry. May2021, Vol. 72, pN.PAG-N.PAG. 1p.
Publication Year :
2021

Abstract

[Display omitted] • Heteroleptic copper complexes as efficient energy transfer photocatalysts. • The structure-activity-relationship of heteroleptic copper complexes was explored. • The high selectivity and good yield were obtained in the photodimerization. • The synthesis method has good universality for enones. The [2 + 2] photodimerization of chalcones, cinnamates and cinnamamides can be effectively catalyzed by heteroleptic copper(I) complexes. The reactions were carried out under mild reaction conditions and the products were obtained in 20–72% yield under visible light irradiation. The copper-based photocatalyst comprised of the rigid phenanthroline ligand with substituents at the 2,9-positions and the 4,7-positions showed high activity in the photodimerization via an energy transfer pathway. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00404039
Volume :
72
Database :
Academic Search Index
Journal :
Tetrahedron Letters: International Organ for the Rapid Publication of Preliminary Communications in Organic Chemistry
Publication Type :
Academic Journal
Accession number :
150289822
Full Text :
https://doi.org/10.1016/j.tetlet.2021.153091