Preference for photodissociation over internal [2 + 2]-cycloaddition during irradiation of an unsaturated α,β-enone
摘要:
Irradiation of 2, its trimethylsilyl ether or acetate ester using ultraviolet light of wavelength >290 nm results not in internal olefin-alpha,beta-enone cycloaddition, but exclusively in photodissociation either of the intercyclic bond (for 2 or the TMS ether) or the C-OAc bond for the acetate ester.
Preference for photodissociation over internal [2 + 2]-cycloaddition during irradiation of an unsaturated α,β-enone
摘要:
Irradiation of 2, its trimethylsilyl ether or acetate ester using ultraviolet light of wavelength >290 nm results not in internal olefin-alpha,beta-enone cycloaddition, but exclusively in photodissociation either of the intercyclic bond (for 2 or the TMS ether) or the C-OAc bond for the acetate ester.