abstract |
2-Benzyl-7,7-dimethyl-6,8-dioxa-2-aza-spiro [3,5] nonane having the formula In na process for the preparation of that compound, which comprises heating a dibromo dioxane derivative of formula II:n nwith benzylamine in an organic solvent and in the presence of an acid acceptor; nand the use of that compound as an intermediate in the preparation of 3-carboxy azetidine. |