Hydrochloric Acid → HCID 1164242, compound

Participants

Reaction Conditions

Reaction Steps

2-Amino-5-tert-butyl-1,3,4-thiadiazole (1.0 g, 6.36 mmol) was suspended in pyridine (1.6 mL). N-Acetylsulfanilyl chloride (1.9 g, 5.1 mmol) was added slowly at 0° C. The reaction mixture was then heated to 95° C. and was stirred for 1 h. The reaction mixture was then added to aqueous 3N HCl and the mixture extracted with ethyl acetate. The organic extracts were washed with water (3×65 mL), brine (3×65 mL), dried over anhydrous Na2SO4, filtered, and volatiles evaporated. The residue was crystallized from MeOH to give the product (1.59 mg, 4.3 mmol, 84%) as a solid, mp 137-138° C.; 1H NMR (500 MHz, DMSO) δ 1.28 (9, t, J=7.0 Hz), 2.08 (3, s), 7.73 (2, d, J=8.5 Hz), 7.78 (2, d, J=8.5 Hz), 10.48 (1, s), 14.00 (1, brs); 13C NMR (125 MHz, DMSO) δ 24.1, 29.3, 36.1, 118.6, 126.8, 135.6, 142.8, 166.9, 167.2, 169.0; MS (LCQ, ESI+) Calculated for C14H19N4O3S2 355.1, found 355.1 (M+H)+; HRMS (FAB+, m/z) Calculated for C14H19N4O3S2 355.0899, found 355.0900 (M+H)+.

Provenance & Evidence