OPTICAL PRODUCT, ASYMMETRIC DISULFIDE COMPOUND USED THEREFORAND METHOD FOR PRODUCING THE ASYMMETRIC DISULFIDE COMPOUND

摘要

The invention provides an optical product made of a polymer, which is obtained by using at least an asymmetric disulfide compound as an essential monomer component and which has a high refractive index and a high Abbe's number and superior heat resistance, superior weather resistance and superior transparency. The invention also provides asymmetric disulfide compounds ob- tained through reaction of (A) an O-alkyl-S-substituted sulf- enylthiocarbonate with (B) a thiol; and a method for producing asymmetric disulfides, which comprises reacting an alkoxycar- bonylsulfenyl halide with a thiol, followed by reacting the resulting O-alkyl-S-substituted sulfenylthiocarbonate with a thiol that differs from the thiol used in the previous reac- tion. These asymmetric disulfide compounds are capable of forming optical materials that have a high refractive index and a high Abbe's number and have superior heat resistance, superior weather resistance and superior transparency.