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Issue 12, 2017
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Synthesis of cyclohexylidenehydrazine-fused polycyclics via a photocatalytic radical cascade reaction of 2-ethynylaldehyde hydrazones

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Abstract

A general and efficient visible-light photoredox-catalyzed cascade annulation of 2-ethynylaldehyde hydrazones with α-bromo-carbonyls for the synthesis of various cyclohexylidene-hydrazine-fused polycyclic compounds is described. This protocol is characterized by a broad substrate scope, mild conditions and amenability to gram-scale synthesis.

Graphical abstract: Synthesis of cyclohexylidenehydrazine-fused polycyclics via a photocatalytic radical cascade reaction of 2-ethynylaldehyde hydrazones

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Article information


Submitted
12 Dec 2016
Accepted
18 Jan 2017
First published
18 Jan 2017

Chem. Commun., 2017,53, 2036-2039
Article type
Communication

Synthesis of cyclohexylidenehydrazine-fused polycyclics via a photocatalytic radical cascade reaction of 2-ethynylaldehyde hydrazones

N. Zhou, J. Liu, Z. Yan, Z. Wu, H. Zhang, W. Li and C. Zhu, Chem. Commun., 2017, 53, 2036
DOI: 10.1039/C6CC09863K

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