Ammonium Chloride → HCID 66844939, compound

Participants

Reaction Conditions

Reaction Steps

A suspension of 2-methyl-5-(3-nitro-phenyl)-thiazole-4-carboxylic acid methyl ester (44.1 mmol) and ammonium chloride (220 mmol) in a mixture of ethanol (100 mL) and water (50 mL) is treated with iron powder (53.0 mmol) and heated to 80° C. After 4 h an additional portion of iron powder (53.0 mmol) is added, the mixture is stirred at 80° C. for 3 h, further iron powder (26.5 mmol) is added and the mixture is again stirred at 80° C. for 3.5 h. The mixture is allowed to reach RT, diluted with DCM and filtered through Celite. The filtrate is concentrated in vacuo and diluted with DCM and sat aqueous NaHCO3 solution. The layers are separated and the organic layer is washed with water, dried over MgSO4 and concentrated in vacuo to give the desired aniline derivative. LC-MS: tR=0.67 min; [M+H]+=249.4.

Provenance & Evidence