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Conjugate addition of a phosphorus ylide to 3-cyanochromone

Gabbutt, Christopher D., Heron, B. Mark, Hursthouse, Michael B. and Abdul Malik, K. M. (2000) Conjugate addition of a phosphorus ylide to 3-cyanochromone. Phosphorus, Sulfur, and Silicon and the Related Elements, 166 (1). pp. 99-109. ISSN 1042-6507
Abstract

Reaction of 3-cyanochromone with methylenetriphenylphosphorane yields the stabilized 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.

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Item Type:
Article
Depositing User:
Sharon Beastall
Date Deposited:
25 Sep 2012 09:19
Revision:
13
Last Modified:
28 Aug 2021 11:21
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