Steric effects in the meta photocycloaddition of ethylenes to alkylbenzenes - Gilbert, A.; Heath, P. (Elsevier)
Vinyl acetate and cis cyclo-octene undergo regioselective meta photocycloaddition to alkylbenzenes: the orientation of attack suggests that adduct formation can occur by two different mechanisms.
http://dx.doi.org/10.1016/S0040-4039(01)86428-5
Keywords: V