Hydrazine synthesis
US5274096A · kind A · utility
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Key dates
| Filing date | Mar 17, 1992 |
| Grant date | Dec 28, 1993 |
| Priority date | — |
| Expiry date | Mar 17, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D215/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An improved synthesis is described for producing a quinolinylmethoxyphenyl hydrazine which is an intermediate in the preparation of quinolinylmethoxyindoles useful as inhibitors of leukotriene biosynthesis. The improved process eliminates two isolation steps and yields a product of high purity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.