Bromination of substituted benzaldehydes
US4551557A · kind A · utility
2Cited by
1References
13Claims
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Key dates
| Filing date | Dec 24, 1984 |
| Grant date | Nov 5, 1985 |
| Priority date | — |
| Expiry date | Dec 24, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C47/575
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Substituted bromobenzaldehydes, e.g., 5-bromovanillin, are facilely prepared without conjoint production of HBr, by brominating the corresponding benzaldehydes with a brominating agent couple which comprises hydrobromic acid and a bromide ion oxidizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.