Process for the preparation of perdeuterated methacrylates
US4645856A · kind A · utility
1Cited by
4References
2Claims
0Family size
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Inventor
Key dates
| Filing date | Apr 15, 1985 |
| Grant date | Feb 24, 1987 |
| Priority date | — |
| Expiry date | Apr 15, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2967
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.