The mechanism of methyl radical loss from CH3CH
CHCH(CH3)OCH3+˙ and CH2
C(CH3)CH(CH3)OCH3+˙: a not-so-simple cleavage
Abstract
Loss of a methyl radical from CH3CHCHCH(CH3)OCH3+˙ and CH2
C(CH3)CH(CH3)OCH3+˙ is shown by 2H-labelling and collision-induced dissociation experiments to involve elimination of the methyl group originally attached to the double bond, with formation of CH2
CHC(CH3)
O+CH3 as the fragment ion.