Water → HCID 15217703, compound

Participants

Reaction Steps

The carboxylic acid thus obtained and 10 parts of potassium carbonate were mixed in 200 cc of N,N-dimethylacetamide, to which 6.5 parts of dimethyl sulfate was added dropwise at 45° C. followed by stirring at the same temperature for one hour. The resulting reaction mixture was poured into 2 λ of water. Then, the deposited crystals were filtered off and recrystallized with methanol-ethylacetate to obtain 25.7 parts of 9- ( 2-methoxycarbonylphenyl ) -2-diphenylamino-3-methoxy-6-diethylaminoxanthene having a melting point of 117° to 119° C.

Provenance & Evidence