Kinetics and regioselectivity of ring opening of 1-bicyclo[3.1.0]hexanylmethyl radical.

Rate constants for the rearrangement of 1-bicyclo[3.1.0]hexanylmethyl radical (2) to 3-methylenecyclohexenyl radical (3) and 2-methylenecyclopentyl-1-methyl radical (1) were measured using the PTOC-thiol competition method.