Electron-transfer-initiated photospirocyclization reactions of. beta.-enaminone-derived allyliminium salts

…, FT Chiu, T Tiner-Harding, PS Mariano

Index: Ullrich, John W.; Chiu, Fang-Ting; Tiner-Harding, Tammy; Mariano, Patrick S. Journal of Organic Chemistry, 1984 , vol. 49, # 2 p. 220 - 228

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Citation Number: 11

Abstract

Model studies have been conducted to test several features of spirocyclization methodologies based upon excited-state reactions of allyliminium salts. Results from investigations of the photocyclization reactions of the P-enaminone-derived prenyliminium perchlorates 4-8 suggest that spirocyclic amine forming reactions, induced by intramolecular electron transfer and leading to 2-aza-l, 5-diradicah by methanol addition to precursor ...