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ChemInform Abstract: Abnormally High Reactivity of the Vinyl Hydrogen Toward Singlet Oxygen in a Twisted 1,3-Diene.

✍ Scribed by H. MORI; K. IKOMA; Y. MASUI; S. ISOE; K. KITAURA; S. KATSUMURA

Publisher: John Wiley and Sons
Year: 2010
Weight: 29 KB
Volume: 28
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199706079

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✦ Synopsis

Abnormally High Reactivity of the Vinyl Hydrogen Toward Singlet Oxygen in a Twisted 1,3-Diene.

-Sensitized photooxidation of the twisted 1,3-dienes (I) results in formation of the allene via ene-reaction of the C-7 vinyl hydrogen together with the exo-methylene compounds (III) via reaction of the C-11 allyl hydrogen. The even more twisted silyl derivatives (IV) produce an increased ratio of allenes (II). -(MORI, H.; IKOMA, K.;

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