Bauslaugh-Schuster-Weedon mechanism

The Bauslaugh-Schuster-Weedon Mechanism for Enone-Alkene Phot 0 cyclo additions... [Pg.1481]

The mechanism of the 2 + 2 photocycloaddition of enones with alkenes, which can be viewed as the Bauslaugh-Schuster-Weedon biradical mechanism, is represented in Scheme 10 [66],... [Pg.162]

Schuster s and Weedon s results support Bauslaugh s proposed mechanism that emphasizes the effect of the ratio between cyclization and the alternative fragmentation pathway of the diradical intermediate, on the regioselectivity in the intermolecular photocycloadditions, and propose not to consider the oriented 7r-complex (exciplex) as an intermediate in the mechanistic pathway of the [2 + 2] photocycloaddition of enones to alkenes. [Pg.663]

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