Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Reexamination Certificate
2008-05-20
2008-05-20
Eyler, Yvonne (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
Reexamination Certificate
active
10569643
ABSTRACT:
A method for producing MMA-d8which includes a step of exchanging D in hydroxyl group of methanol-d4represented by the formula: CD3OD with H to prepare the methanol-d3represented by the formula CD3OH and simultaneously recovering a deuterium-containing compound, and a step of reacting methanol-d3with sulfuric acid salt of methacrylic acid amide represented by the formula CD2=(CD3)CO(NH2.H2SO4) to prepare MMA-d8represented by the formula: CD2=(CD3)COOCD3.
REFERENCES:
patent: 4138194 (1979-02-01), Beasley et al.
patent: 4421865 (1983-12-01), Shen
patent: 4645856 (1987-02-01), Herold
patent: 2004-10593 (2004-01-01), None
patent: 2004-10594 (2004-01-01), None
patent: 2004-10595 (2004-01-01), None
Hermann D Noether The Journal of Chemical Physics vol. 10, Dec. 1942, No. 12 pp. 693-699.
Hermann D Noether Infra-Red and Raman Spectra of Polyatomic Molecules The Journal of Chemical Physics vol. 10 Dec. 1942, No. 12.
Nagai et al, “Infrared Spectra of Deuterated Poly(methyl methacrylates)”, Journal of Polymer Science, 62(174). S95-S98 CODEN: JPSCAU; ISSN: 0022-3832, 1962, XP008070279; p. 95.
J. Poly. Sci., vol. 62, S95 (1962).
Aida et al, “Living Polymerization . . . ”, J. Phy. Org. Chem., vol. 8, p. 249 (1995).
Beersmans et al, “Synthese et etude . . . ”, Bull. Soc. Chim. Belg., 56 (1947) 81, abstract.
Noether, “Infra-Red and Rama Spectra . . . ”, J. Chem. Phys., 10 (1942) 694.
Abe Takafumi
Abe Toshifumi
Sugano Yuichi
Eyler Yvonne
Nagubandi Lalitha
Nixon & Vanderhye P.C.
Taiyo Nippon Sanso Corporation
LandOfFree
Method for producing deuterated methyl methacrylate does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for producing deuterated methyl methacrylate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing deuterated methyl methacrylate will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3910597