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CAS No. : | 918-00-3 | MDL No. : | MFCD00018829 |
Formula : | C3H3Cl3O | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | SMZHKGXSEAGRTI-UHFFFAOYSA-N |
M.W : | 161.41 | Pubchem ID : | 13514 |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P210-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P403+P235-P501 | UN#: | N/A |
Hazard Statements: | H227-H315-H319 | Packing Group: | N/A |
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 |
---|---|---|
80% | Stage #1: With hydrogen In water at 82℃; Stage #2: With sodium metabisulfite; sodium hydroxide In water at 45℃; |
296 g (1 mol) of p-nitrobenzoylglutamic acid and 162.8 g (1.05 mol) of 2,4-diamino-6-hydroxy-5-nitrosopyrimidine were dissolved in 2000 mL of water and heated to 82 ° C , Dissolved under stirring, added 1.2g Lenny nickel catalyst, nitrogen and airGas replacement three times, hydrogen and nitrogen replacement three times, hydrogen pressure maintained at 0.8MPa, until the end of hydrogen absorption, hydrogenation after(1.1 mol) of sodium metabisulfite was added to the filtrate, and 1184.3 g (1.1 mol) of a 15percent aqueous trichloroacetone solution was added dropwise at 45 ° C, and the mixture was adjusted with 10percent by mass of sodium hydroxide solution PH maintained at around 4.5, the reaction finishedAfter completion, cool down to 0 crystallization, pressure filtration, get crude folic acid. And then refined to obtain yellow folic acid solid powder. The total yield of folic acid was 80percent and the product content was 98.7percent. |