1,3-Dioxolen-2-one derivatives and process for production thereof.

摘要

A 1,3-dioxolen-2-one derivative of the general formula wherein R1 represents a hydrogen atom, a methyl group, or a phenyl group, R2 represents a hydrogen atom, or may be taken together with R1 to form a &lparstr& CH2 &rparstr& @ group, and X represents a halogen atom. The above compound can be prepared by reacting a compound of the general formula with a halogenating agent, and is useful as protective group-introducing reagents for introducing protective groups into reagents in various chemical reactions, or as modifiers for prodrug preparation in medicine.