4-amino-5-methylbenzene-1,3-diol

Conditions: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 1.0 g (7.2 mmol) 4-amino-5-methylbenzene-1,3-diol and 2.2 g (15.8 mmol) potassium carbonate in 20.0 mL acetonitrile were cooled in the ice bath. 0.65 mL (7.9 mmol) bromoacetyl chloride were added dropwise and the reaction mixture was stirred for 30 min at RT and for 1 h at 70° C. The mixture was combined with water, acidified with aqueous hydrochloric acid and extracted with dichloromethane. The organic phase was separated off, dried and evaporated down i.vac. extracted with dichloromethane The organic phase was separated off dried evaporated down i.vac

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 2.43 g (14.4 mmol) 5-methyl-4-nitrobenzene-1,3-diol were placed in 200 mL methanol and hydrogenated under a hydrogen atmosphere and with the addition of 0.20 g Pd/C (10%) at 50° C. and a hydrogen pressure of 5 bar until all the hydrogen had been taken up. The catalyst was filtered off and the filtrate was evaporated down i.vac. The catalyst was filtered off the filtrate was evaporated down i.vac