1,6-Conjugate addition initiated formal [4+2] annulation of p-quinone methides with sulfonyl allenols: a unique access to spiro[5.5]undeca-1,4-dien-3-one scaffolds

Title1,6-Conjugate addition initiated formal [4+2] annulation of p-quinone methides with sulfonyl allenols: a unique access to spiro[5.5]undeca-1,4-dien-3-one scaffolds
Publication TypeJournal Article
Year of Publication2020
AuthorsGhotekar, GS, Shirsath, SR, Shaikh, AC, Muthukrishnan, M
JournalChemical Communications
Volume56
Issue37
Pagination5022-5025
Date PublishedMAY
Type of ArticleArticle
ISSN1359-7345
Abstract

An expedient one-pot synthesis of carbocyclic spiro[5.5]undeca-1,4-dien-3-ones via 1,6-conjugate addition initiated formal [4+2] annulation sequences by employing p-quinone methides and sulfonyl allenols is presented. Furthermore, this synthetic protocol tolerates a wide variety of p-quinone methides and sulfonyl allenols and affords the corresponding structurally unique spiro[5.5]undeca-1,4-dien-3-ones in good yield under mild reaction conditions.

DOI10.1039/d0cc01005g
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)

5.996

Divison category: 
Organic Chemistry

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