Benzoyl isothiocyanate → HCID 86661669, compound

Participants

Reaction Steps

1-Amino-1H-indole-2-carboxylic acid methyl ester (18.56 g, 0.098 mol) was dissolved in tetrahydrofuran (800 mL). Benzoyl isothiocyanate (13.1 mL, 0.098 mol) was added and the reaction was allowed to stir overnight. The solvent was removed in vacuum and the solid residue was triturated with ether. The solid was collected by filtration to yield the 1-(3-benzoyl-thioureido)-1H-indole-2-carboxylic acid methyl ester (24.27 g, 70%), which was used in the next step without further purification. 1H-NMR (CDCl3) δ 12.81 (br s, 1H), 9.29 (br s, 1H), 7.95 (d, J=7.2 Hz, 2H), 7.68 (m, 2H), 7.57 (m, 2H), 7.42 (m, 2H), 7.38 (s, 1H), 7.24 (m, 1H), 3.89 (s, 3H).

Provenance & Evidence