Published in
Royal Society of Chemistry, Green Chemistry, 14(18), p. 3935-3939
DOI: 10.1039/c6gc01027j
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Sunlight-promoted cyclization versus decarboxylation in the reaction of alkynoates with N-iodosuccinimide: easy access to 3-iodocoumarins
Journal article published in 2016 by
Shengyang Ni,
Jia Cao,
Haibo Mei,
Jianlin Han,
Shuhua Li 
,
Yi Pan
,
Yi Pan
This paper was not found in any repository, but could be made available legally by the author.
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Abstract
We report the green, sunlight-initiated radical conversion of aryl alkynoates to 3-iodocoumarins using NIS without the use of a catalyst or additive. Mechanistic studies indicate that the reaction proceeds through iodination, spirocyclization and ring expansion to form the kinetic product.