Alkynylazulenes as Building Blocks for Highly Unsaturated Scaffolds

Recently developed routes to the synthesis of mono‐ and polyethynylated azulenes and their transformations into linear oligoazulenes with ethynyl and butadiynyl bridges as well as azulenyl‐substituted benzenes, cyclobutadiene complexes, and azulene‐substituted tetracyanobutadienes are reviewed. The...

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Bibliographic Details
Published in:Asian journal of organic chemistry 2021-08, Vol.10 (8), p.2010-2083
Main Authors: Elwahy, Ahmed H. M., Hafner, Klaus
Format: Article
Language:English
Subjects:
Azulene
Cobalt Catalyst
Cross-coupling
Cycloaddition
Cyclooligomerization
Ethynylazulenes
Organic chemistry
Palladium Catalyst
Substitutes
Synthesis
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Summary:Recently developed routes to the synthesis of mono‐ and polyethynylated azulenes and their transformations into linear oligoazulenes with ethynyl and butadiynyl bridges as well as azulenyl‐substituted benzenes, cyclobutadiene complexes, and azulene‐substituted tetracyanobutadienes are reviewed. The utility of ethynylazulene derivatives for the synthesis of azulene‐substituted heterocycles has also been reviewed. Recently developed routes to the synthesis of mono‐ and polyethynylated azulenes and their transformations into linear oligoazulenes with ethynyl and butadiynyl bridges as well as azulenyl‐substituted benzenes, cyclobutadiene complexes, and azulene‐substituted tetracyanobutadienes are reviewed. The utility of ethynylazulene derivatives for the synthesis of azulene‐substituted heterocycles has also been reviewed.
ISSN:2193-5807
2193-5815
DOI:10.1002/ajoc.202100301