
Tetrahedron Letters p. 1973 - 1976 (1992)
Update date:2022-08-10
Topics:
Heidbreder, Andreas
Mattay, Jochen
Unsaturated enol silyl ethers are irradiated in the presence of the electron transfer sensitizer 9, 10-dicyanoanthracene to form silyloxy radical cations which cyclize efficiently to yield cyclic ketones. Cyclization reactions of ε,ζ-unsaturated enol silyl ethers lead exclusively to 6-membered rings.
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