Liquid-phase photolysis. Part X. Formation of spiro-oxetans by photoaddition of olefins to p-benzoquinone
作者:D. Bryce-Smith、A. Gilbert、M. G. Johnson
DOI:10.1039/j39670000383
日期:——
Irradiation of solutions of p-benzoquinone and olefins in benzene gives spiro-oxetans by 1,2-addition of a carbonyl group of the quinone. The following olefins react in this way: cyclohexene, cyclo-octene, cyclo-octa-1,5-diene, cyclo-octatetraene, bicycloheptadiene, oct-1-ene, and oct-2-ene. The adducts readily undergo acid-catalysed rearrangement to hydroxycoumarans, whilst catalytic hydrogenation