(3+3) Annulation of acetoxy allenoates with enolisable carbonyl substrates leading to fused pyrans

Lewis base dependent (3 + 3) annulation of delta-acetoxy allenoates with benzofuranone, pyrazolone, and Boc-protected oxindole is reported. In the presence of catalytic DBU, oxindole, benzofuranone, and pyrazolone undergo (3 + 3) annulation with delta-acetoxy allenoates via 6-exo-dig cyclisation at...

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Bibliographic Details

Published in:	Organic & biomolecular chemistry Vol. 21; no. 24; pp. 5021 - 5032
Main Authors:	Chauhan, Sachin, Debnath, Shubham, Swamy, K. C. Kumara
Format:	Journal Article
Language:	English
Published:	CAMBRIDGE Royal Soc Chemistry 21.06.2023
Subjects:	Chemistry Chemistry, Organic Physical Sciences Science & Technology
ISSN:	1477-0520, 1477-0539, 1477-0539
Online Access:	Get more information
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