Methanol → HCID 67512486, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 5-nitro-isophthalic acid 1-tert-butyl ester 3-methyl ester (D78) (5.3 g, 19 mmol, 1 equiv), NH4COOH (11.9 g, 190 mmol, 10 equiv) and 10% Palladium on charcoal (50% wet, 0.75 g, 7% w/w) in EtOH (50 ml) and H2O (25 ml) was heated at 50° C. for 30 min. MeOH (20 ml) was added and the resulting solution was heated at 50° C. for another hour then cooled to room temperature, filtered through a pad of celite and concentrated in vacuo. The residue was diluted with saturated aqueous NaHCO3 solution (100 ml) and the aqueous phase was extracted with AcOEt (150 ml). The organic phase was dried over MgSO4 and concentrated in vacuo. The residue was triturated with iso-hexane to give of 5-amino-isophthalic acid 1-tert-butyl ester 3-methyl ester (D79) (3.4 g, 71%) as a white solid.

Provenance & Evidence