METHOD FOR THE SYNTHESIS OF 4-CHLOROFENOXYACETIC ACID
A method for the synthesis of 4-chlorofenoxyacetic acid (4CFOC), which method provides the fusion of chloroacetic acid with 4-chlorophenol with an addition of concentrated solution of alkali, keeping and isolation of acid in the form of sodium slat with subsequent conversion thereof in a free state...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A method for the synthesis of 4-chlorofenoxyacetic acid (4CFOC), which method provides the fusion of chloroacetic acid with 4-chlorophenol with an addition of concentrated solution of alkali, keeping and isolation of acid in the form of sodium slat with subsequent conversion thereof in a free state by mineral acid. Between stages 4CFOC salt precipitation and isolation of acid in the free state, the stage of reprecipitation of salt from water is in addition introduced. |
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