Purification process for 3-phenoxybenzaldehyde
US4162269A · kind A · utility
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3Claims
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Key dates
| Filing date | Aug 16, 1977 |
| Grant date | Jul 24, 1979 |
| Priority date | — |
| Expiry date | Aug 16, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/85
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A purification process for 3-phenoxybenzaldehyde, which comprises reacting crude 3-phenoxybenzaldehyde with an alkali metal or ammonium bisulfite, or metabisulfite in the presence of an organic quaternary ammonium salt, an inorganic acid salt of organic tertiary amines, or a macrocyclic polyether used as a catalyst, isolating the resulting 3-phenoxybenzaldehyde alkali metal or ammonium bisulfite adduct, and decomposing it by using an acid or a base, or by heating.
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