Synthesis and some reactions of 1-(trimethoxymethyl)cyclohexene

Article abstract of DOI:10.1071/CH9961287

1-(Trimethoxymethyl)cyclohexene (11) was synthesized in three steps from N-methyl-N-phenylcyclohex-1-ene-1-carboxamide (8). Reaction of the α,β-unsaturated ortho ester (11) with sodium hydride and N-methylaniline gave a 1:1 mixture of methyl cyclohex-1-ene-1-carboxylate (15) and N,N-dimethylaniline. Treatment of (11) with 3-methoxyphenol gave 1-[dimethoxy(3′-methoxyphenoxy)methyl]cyclohexene (10) which underwent thermolysis at 250° to give 1,3-dimethoxybenzene (16) and methyl cyclohex-1-ene-1-carboxylate (15).