Preparation of vinylene carbonate by dehydrogenation of monohaloethylene carbonate is carried out in ether, preferably methyl tert.-butyl ether, as solvent

摘要

In the preparation of vinylene carbonate (I) by reacting a monohaloethylene carbonate (II) with a dehydrohalogenating agent (III) at elevated temperature in the presence of an organic solvent, an ether (IV) is used as solvent. In the preparation of vinylene carbonate of formula (I) by reacting a monohaloethylene carbonate of formula (II) with a dehydrohalogenating agent (III) at elevated temperature in the presence of an organic solvent, an ether (IV) is used as solvent; X : a halogen atom. [Image].