Syn Bromination of 2-Cyclohexen-1-ol Benzoates. Isolation of a trans-3-Bromocyclohexano-cis-1,2-(2'-anisyl-1',3'-dioxolan-2'-ylium) Intermediate

Article abstract of DOI:10.1021/jo00391a034

The addition of molecular bromine to 2-cyclohexen-1-ol benzoate, p-methylbenzoate, and p-methoxybenzoate in aprotic solvents of low to moderate dielectric constant gave, besides the expected vicinal trans diaxial and diequatorial dibromides, large amounts