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Methylenecyclohexane ring is obtained by 1,4-addition of 4-pentenylmagnesium bromide to 2-cyano-2-cycloalkenones followed by a Pd(II)-mediated oxidative cyclization.
M 2318 (OTTOKEMI) Methylenecyclohexane, 98% Cas 1192-37-6 - used to produce 1-(4-bromo-butoxy)-1-bromomethyl-cyclohexane by reaction with tetrahydrofuran.