Method for manufacturing epoxy compound for optical materials and method for manufacturing episulfide compound for optical material and high refractive optical material using same

摘要

The present invention relates to a method of manufacturing an epoxy compound for an optical material, and a method for manufacturing an episulfide compound for an optical material and a high refractive optical material using the same. In the present invention, epichlorohydrin and hydrogen sulfide are reacted to obtain bis(3-chloro-2-hydroxypropyl)sulfide, and the bis(3-chloro-2-hydroxypropyl)sulfide obtained in the above step is used as an alkali. A method for preparing an epoxy compound comprising the step of obtaining bis(2,3-epoxypropyl)sulfide represented by the following formula (1) by reacting with There is provided a method for producing an epoxy compound for an optical material, characterized in that the reaction is carried out while maintaining the initial reactor temperature at 15 to 40° C. using 12 to 50% by weight of caustic soda. According to the present invention, it is possible to manufacture a high-quality epoxy compound for an optical material with a low content of impurities and no yellowish color. can be manufactured.