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CAS No. : | 56990-04-6 | MDL No. : | MFCD01109750 |
Formula : | C7H3Cl2NO3 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | UDZBIAFPVQJADQ-UHFFFAOYSA-N |
M.W : | 220.01 | Pubchem ID : | 2749246 |
Synonyms : |
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Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501 | UN#: | |
Hazard Statements: | H302-H312-H315-H319-H332-H335 | Packing Group: | |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With ammonium hydroxide; In ethanol; water; | Example 9 (R)-alpha-Amino-6,7-dichloro-3-(phosphonomethyl)-2-quinolinepropanoic acid 3,4-Dichloro-6-nitrobenzaldehyde (4.40 g, 20 mmol) was dissolved in 50% aqueous ethanol (200 ml) at 50-60 C. and the solution was added to a solution of iron(II) sulfate heptahydrate (27.8 g, 100 mmol) in water (200 ml) at 90 C. Concentrated (25%) aqueous ammonia (50 ml) was added in several portions with intensive stirring while the temperature was kept close to the boiling point. The mixture was refluxed for 5-10 min. and cooled. The precipitate was filtered off and washed with ethanol. The filtrate was concentrated in vacuo until most of the ethanol was removed. The resulting precipitate was collected, washed with water and dried in vacuo at 40-50 C. to give 3.3 g of 3,4-dichloro-6-aminobenzaldehyde. |