HCID 13065291, compound → HCID 13065292, compound

Participants

Reaction Steps

75 liters of methanol is placed in a 100 liter reactor. It is agitated and 24.5 kg of finely ground methyl 2-methoxy-4-acetamino-5-sulfobenzoate is added. The sulfonic acid dissolves; the deacetylated derivative crystallises shortly afterwards. The reaction mixture is left at room temperature for 24 hours, with agitation, so as to complete precipitation. The product is drained in a centrifugal drier, washed twice, with 6 liters of methyl alcohol each time, and dried in a ventilated oven at 50° C.; it has the following properties:

Provenance & Evidence