Intramolecular electron transfer in the novel photoreaction of some β,γ-unsaturated oxime–boron trifluoride complexes. A new synthetic path to dihydroisoxazoles
作者:Diego Armesto、John C. Barnes、William M. Horspool、Fernando Langa
DOI:10.1039/c39900000123
日期:——
β, γ-Unsaturated oximes are photochemically reactive in benzene solution when irradiated in the presence of boron trifluoride–diethyl ether; typically 2,2-dimethyl-4,4-diphenylbut-3-enaloxime affords a low yield of 2,2-diphenyl-3,3-dimethylcyclopropanecarboxaldehyde by the aza-di-π-methanerearrangement, and a principal product (48%) identified by X-ray diffraction analysis as 4, 4-dimethyl-5-(di