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Generation and trapping of a silyloxy carbonyl ylide

✍ Scribed by Pradecp K. Sharma; John Warkentin

Book ID
103407629
Publisher
Elsevier Science
Year
1995
Tongue
French
Weight
229 KB
Volume
36
Category
Article
ISSN
0040-4039

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## Abstract On ^1^n, π\* ‐excitation 5, 6‐epoxy‐2‐hydroxy‐5, 6‐dihydro‐β‐ionone ((__E__)‐4) shows the typical behaviour of a, β‐unsaturated γ, δ‐epoxy ketones undergoing primarily C(γ), O‐cleavage of the oxiran. However, ^1^π, π\*‐excitation of (__E__)−**4** leads to enol ether **10** which is form