Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1985-04-15
1987-02-24
Brust, Joseph Paul
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
556417, 5263297, 428394, 350 9634, 560205, C07C 6700
Patent
active
046458565
ABSTRACT:
Perdeuterated methacrylates of a high degree of deuteration can be obtained by a process for the preparation of perdeuterated methacrylates from hexadeuteroacetone by conversion into the corresponding cyanohydrin, subsequent elimination of water, hydrolysis of the cyano group and esterification with perdeuterated alkanols, the conversion of hexadeuteroacetone into the cyanohydrin being effected by reaction with trimethylsilyl cyanide to give 1,3-hexadeutero-2-(trimethylsiloxy)-2-cyano-propane and subsequent hydrolytic elimination of the trimethylsilyl group.
REFERENCES:
patent: 3419601 (1968-12-01), Isbell, Jr.
patent: 3466320 (1969-09-01), Hargis
patent: 4138194 (1979-02-01), Beasley et al.
patent: 4529816 (1985-07-01), DeColibus et al.
Fieser, et al., Reagents for Organic Synthesis, vol. 10, (1982), p. 3, John Wiley & Sons, N.Y.
Brust Joseph Paul
Merck Patent Gesellschaft mit beschrankter Haftung
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