HCID 10945066, compound → HCID 10857172, compound

Participants

Reaction Steps

treating 1-hydroxy-8-nitro-6H-benzo[c]chromen-6-one with a second transition metal catalyst under a hydrogen atmosphere at a pressure of about 20 to about 60 psi, preferably about 40 psi, in a third solvent, preferably N-methylpyrrolidin-2-one (NMP) at a concentration of about 0.5M to about 1.0M, preferably 0.7M, to provide 8-amino-1-hydroxy-6H-benzo[c]chromen-6-one in NMP;

Provenance & Evidence