Dimethylformamide dimethyl acetal → HCID 54528014, compound

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Reaction Steps

The above procedure was repeated using 1,4,6,7-tetrahydro-1-methyl-5H-indazol-5-one and N,N-dimethylformamide dimethyl acetal. The crude product was flash chromatographed (5% methanol in dichloromethane) on silica gel to give a thick amber oil which was triturated with etherhexane to give 4-(dimethylaminomethylene) 1,4,6,7-tetrahydro-1-methyl-5H-indazol-5-one as a tan powder melting at about 94°-100° C.

Provenance & Evidence