Ammonia → HCID 178439841, compound

Participants

Reaction Steps

1.50 g. (4.9 mmole) of the compound prepared in Example 10 is stirred in 30 ml. 60% sulphuric acid for 1 hour at 60° C. bath temperature, then poured on to ice, neutralised with 2N aqueous ammonia solution and the precipitated product is filtered off with suction and the residue crystallised from ethyl acetate/methanol. There is obtained 0.70 g. (62% of theory) of the title compound; m.p. 235°-238° C.

Provenance & Evidence