US Patent 7375247 Method for producing deuterated methyl methacrylate

Patent 7375247 was granted and assigned to Taiyo Nippon Sanso Corporation on May, 2008 by the United States Patent and Trademark Office.

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Patent

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Current Assignee

Taiyo Nippon Sanso Corporation

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7375247

Date of Patent

May 20, 2008

Patent Application Number

10569643

Date Filed

September 1, 2004

Patent Primary Examiner

‌

Yvonne Eyler

Patent abstract

A method for producing MMA-d8 which includes a step of exchanging D in hydroxyl group of methanol-d4 represented by the formula: CD3OD with H to prepare the methanol-d3 represented by the formula CD3OH and simultaneously recovering a deuterium-containing compound, and a step of reacting methanol-d3 with sulfuric acid salt of methacrylic acid amide represented by the formula CD2=(CD3)CO(NH2.H2SO4) to prepare MMA-d8 represented by the formula: CD2=(CD3)COOCD3.

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