Tetrahydro-2(1H)-quinazolinones and cyclohexene nitriles
US4395550A · kind A · utility
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9Claims
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Key dates
| Filing date | Nov 5, 1981 |
| Grant date | Jul 26, 1983 |
| Priority date | — |
| Expiry date | Nov 5, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D239/82
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the production of 4-phenyl-2(1H)-quinazolinones and -4a,5,6,8a-tetrahydro-2(1H)-quinazolinones which comprises introducing the desired phenyl radical into a corresponding quinazolin-2,4(1H,3H)-dione by way of a Grignard reaction and hydrolysis of the resulting product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.