Conjugate addition of a phosphorus ylide to 3-cyanochromone

Christopher D. Gabbutt, B. Mark Heron, Michael B. Hursthouse, K. M. Abdul Malik

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Reaction of 3-cyanochromone with methylenetriphenylphosphorane yields the stabilised ylide (4) by way of a conjugate addition and subsequent ring opening. Variable temperature 1H NMR spectroscopy indicates that this ylide undergoes rapid conformational interconversion at ambient temperature. X-ray crystallography established that (4) exists as the (E) isomer in the solid state.

Original languageEnglish
Pages (from-to)99-109
Number of pages11
JournalPhosphorus, Sulfur and Silicon and Related Elements
Volume166
Issue number1
DOIs
Publication statusPublished - 1 Jan 2000
Externally publishedYes

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