N-(4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl)benzenesulfonamide

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

Procedure: 3-(Benzenesulfonylamino)-4-oxo-2-thionothiazolidine 624 mg (2.17 mmol, 1.0 equiv) was combined with 349 μL 4-fluorobenzaldehyde (3.26 mmol, 1.5 equiv) and 18 mg NaOAc (0.217 mmol, 0.1 equiv) in 8 mL MeOH. The solution was allowed to stir for 5 h, at which time the resulting yellow solid was removed via filtration. The solid was washed (4×MeOH) and dried under vacuum to give the product as a yellow solid 83.5 mg (0.212 mmol, 10%). 1H NMR (DMSO, 400 MHz) δ 7.90-9.86 (m, 3 H), 7.77-7.70 (m, 3 H), 7.61 (t, J=8.8 Hz, 2 H), 7.42 (t, J=8.8 Hz, 2 H). was removed via filtration The solid was washed (4×MeOH) dried under vacuum