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Issue 77, 2020
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Copper-catalyzed (4+1) and (3+2) cyclizations of iodonium ylides with alkynes

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Abstract

The copper(II)-catalyzed (4+1) cyclizations and copper(I)-catalyzed (3+2) cycloadditions of iodonium ylides and alkynes were successfully developed by employing efficient and safe iodonium ylides instead of traditional diazo compounds. Highly functionalized dimethyl (E)-3-benzylideneindoline-2,2-dicarboxylates and methyl 5-(2-hydroxyphenyl)-2-methoxy-4-phenylfuran-3-carboxylates were conveniently prepared in moderate to excellent yields. The possible reaction mechanisms were also discussed.

Graphical abstract: Copper-catalyzed (4+1) and (3+2) cyclizations of iodonium ylides with alkynes

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Supplementary files

Article information


Submitted
24 Jun 2020
Accepted
11 Aug 2020
First published
12 Aug 2020

Chem. Commun., 2020,56, 11429-11432
Article type
Communication

Copper-catalyzed (4+1) and (3+2) cyclizations of iodonium ylides with alkynes

H. Liang, X. He, Y. Zhang, B. Chen, J. Ouyang, Y. Li, B. Pan, C. V. Subba Reddy, W. T. K. Chan and L. Qiu, Chem. Commun., 2020, 56, 11429
DOI: 10.1039/D0CC04373G

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