title: Temperature-dependent, competitive 1,3-acyl shift versus decarbonylation of a cyclopropanone intermediate.
abstract: Photooxygenation of 1,1,3-trimethyl-1,2-dihydropentalene gives an unstable endoperoxide which upon decomposition delivers a bicyclic cyclopropanone intermediate; this species either extrudes CO to give a cycloheptadienone or undergoes a 1,3-acyl shift, both processes occurring most likely in a stepwise manner via diradical intermediates. Alternatively, C3a-C4 cleavage in the dioxygen diradical derived from the endoperoxide yields a 2-cyclopropyl substituted cyclopentadienone epoxide.
authors: Department of Chemistry and Biochemistry, San Francisco State University, 1600 Holloway Avenue, San Francisco, CA 94132.
authors: Ihsan
authors: I
authors: Erden
authors: Jingxiang
authors: J
authors: Ma
authors: Christian
authors: C
authors: Gärtner
authors: Saeed
authors: S
authors: Azimi
authors: Scott
authors: S
authors: Gronert
keywords: 1; 2-Dihydropentalene; Cyclopropanone; Endoperoxide; Fulvene; Singlet Oxygen
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