DBU-Catalyzed Ring Expansion or Ene-amine Formation Involving δ-Acetoxy Allenoates and N-Sulfonyl Hydrazides

DBU-catalyzed spiro-annulation and concomitant ring expansion/dominoreaction of delta-acetoxy allenoates with cycl-2-ene-N-sulfonyl hydrazides afford ring-expanded (5 -> 6, 6 -> 7, and 7 -> 8) products. By contrast, cycl-3-ene/ane-N-sulfonyl hydrazones under similar conditions deliver pyraz...

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Bibliographic Details
Published in:	Organic letters Vol. 25; no. 20; pp. 3713 - 3717
Main Authors:	Khan, Shabbir Ahmed, Kumar, A. Sanjeeva, Swamy, K. C. Kumara
Format:	Journal Article
Language:	English
Published:	WASHINGTON Amer Chemical Soc 26.05.2023
Subjects:	Chemistry Chemistry, Organic Physical Sciences Science & Technology KETONES PHOSPHINE CATALYSIS ANNULATION IMINES CYCLOADDITIONS CONSTRUCTION TOSYLHYDRAZONES REACTIVITY ALLENES CYCLIZATION
ISSN:	1523-7060, 1523-7052, 1523-7052
Online Access:	Get more information
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