title: Novel oxa-di-pi-methane and Norrish type I reactions in the S2 (pi,pi*) excited state of a series of beta,gamma-unsaturated ketones.
abstract: [reaction: see text] Beta,gamma-unsaturated methyl ketones with electron-withdrawing groups at the gamma-position of the ene moiety undergo ODPM rearrangements and Norrish type I reactions on direct irradiation at 254 nm. The results are consistent with the involvement of alkene S(2) (pi,pi*) as reactive excited states in these processes.
authors.affiliation: Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain. darmesto@quim.ucm.es
authors.forename: Diego
authors.initials: D
authors.lastname: Armesto
authors.forename: Maria J
authors.initials: MJ
authors.lastname: Ortiz
authors.forename: Antonia R
authors.initials: AR
authors.lastname: Agarrabeitia
authors.forename: Mar
authors.initials: M
authors.lastname: Martín-Fontecha