129218-89-9Relevant academic research and scientific papers
A NOVEL PHOTOCHEMICAL 1,4-ACYL MIGRATION IN ENOL ESTERS. THE PHOTOLYSIS OF ENOL ACETATES OF 3-PHENYLPROPIOPHENONES
Alvaro, M.,Baldovi, V.,Garcia, H.,Miranda, M. A.,Primo, J.
, p. 3613 - 3614 (1987)
Photolysis of the enol acetates 1a, b gives the 1,4-diketones 4a, b by a mechanism involving a primary homolytic carbonyl-oxygen bond cleavage, followed by 1,2-hydrogen shift and in cage recombination.
Influence of the β-Substitution on the Photochemistry of α,2-Diacetoxystyrenes. Irradiatin of Phenyl, Vinyl, and Benzyl Derivatives
Alvaro, Mercedes,Baldovi, Vicenta,Garcia, Hermenegildo,Miranda, Miguel, A.,Primo, Jaime
, p. 267 - 274 (2007/10/02)
β-Substitution shows a pronounced influence on the photochemistry of α,2-diacetoxystyrenes.As in the case of the parent compound, intramolecular cyclization with participation of the neighbouring 2-acetoxy group takes place upon irradiation of the enol esters 4a-c; however other processes are also observed, depending on the substrate.The phenyl derivative 4a gives the E isomer 7a and the phenanthrene 9.The vinyl derivative 4b also undergoes cis-trans isomerization and/or photooxidation, to afford 7b and 10.Finally, a 1,4-acyl migratin occurs in the benzyl derivative 4c, whereby the 1,4-diketone 12 is formed.
