MANUFACTURING METHOD OF DEUTERATED METHYL METHACRYLATE

摘要

PROBLEM TO BE SOLVED: To provide an economical manufacturing method of methyl methacrylate-d8 (C5D8O2) which is excellent in both the deuteration rate and the chemical purity and is useful as a raw material for plastic optical fibers and optical waveguide materials having a low transmission loss. SOLUTION: Methyl methacrylate-d8 is manufactured using as raw materials readily available methanol-d4 and acetone-d6 with all hydrogen atoms thereof deuterated, where methanol-d4 is converted into methanol-d3 with its methyl group fully deuterated and methyl methacrylate-d8 is obtained from the thus-obtained methanol-d3 with its methyl group fully deuterated and acetone cyanhydrin-d6 prepared from acetone-d6. A deuterium-containing compound, recovered when methanol-d4 is converted into methanol-d3 with its methyl group fully deuterated, is reutilized as a part of raw materials for manufacturing methanol-d4 and acetone-d6. COPYRIGHT: (C)2005,JPO&NCIPI