Process of the preparation of high-purity alkyladamantyl esters
US6696595B2 · kind B2 · utility
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Key dates
| Filing date | Nov 22, 2002 |
| Grant date | Feb 24, 2004 |
| Priority date | — |
| Expiry date | Nov 22, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2603/74
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There is provided a method for obtaining an alkyladamantyl ester efficiently by distilling and purifying a crude alkyladamantyl ester containing impurities which decompose the alkyladamantyl ester without decomposing the alkyladamantyl ester.The crude alkyladamantyl ester such as crude 2-methyl-2-adamantyl methacrylate is distilled in the presence of a heterocyclic compound and/or a basic compound such as 3-ethyl-3-hydroxymethyloxetane or diglycidyl bisphenol A.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.