Procedure for the preparation of new bifunctional compounds containing the group 2,4,8,10-tetraoxaspiro- (s, s) -undecano. (Machine-translation by Google Translate, not legally binding)

摘要

"Procedure for the preparation of new bifunctional compounds containing the group 2, 4, 8, 10-tetraoxaspiro- (5,5) -undecano", and corresponding to the formula ** (See formula) ** wherein, always R1 or R2 and R3 or R4 are hydrogens, the other two substituents representing the same element or group, among the following: halogen, -OH, -NH2, -C00H, -CN, -CNO, etc. (Machine-translation by Google Translate, not legally binding)