Process for the preparation of aromatic urethanes
US4163861A · kind A · utility
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4References
4Claims
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Key dates
| Filing date | Nov 15, 1977 |
| Grant date | Aug 7, 1979 |
| Priority date | — |
| Expiry date | Nov 15, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C271/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An aromatic urethane (e.g., methyl naphthyl urethane) is prepared by reacting an aromatic hydroxy compound, such as alpha-naphthol, with an aliphatic urethane, such as dimethyl urethane, in the presence of a catalyst consisting of a Lewis acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.