Helvetica Chimica Acta

Photochemische Reaktionen. 93. Mitteilung. Zur Photochemie konjugierter Epoxy??inone: Die UV.??Bestrahlung von 5, 6??Epoxy??5??isopropyl??6??methyl??hept??3??in??2??on

H Eichenberger, HR Wolf, O Jeger

Index: Eichenberger,H. et al. Helvetica Chimica Acta, 1977 , vol. 60, p. 743 - 767

Full Text: HTML

Citation Number: 7

Abstract

Summary This paper continues the series of investigations of the photochemistry of a, p- unsaturated y, S-epoxyketones by examining the hitherto unknown photochemical behaviour of a, P-acetylenic-y, S-epoxy-ketones. As model compound, the aliphatic epoxy- ynone 7 (thermally stable at 180") was synthesized (Scheme 1). It can be converted with BF30 (C2H5) 2 in good yields to the 1, Sdiketone 8, the yne-1, 4-diketone 49 and in small ...