Sodium bis(trimethylsilyl)amide → HCID 18174672, compound

Participants

Reaction Steps

To a solution of 5-(4-methoxyphenylsulfonyl)-thiazolidine-2,4-dione [U.S. Pat. No. 5,605,918; February 1997; Wrobel, et al.]((2.74 g, 9.5 mMol) in DMF (50 ml) was added sodium hexamethyldisilazide (1.0 M solution in THF—19.0 ml, 19.0 mmol) at room temperature, under nitrogen, and this was stirred for 15 minutes. To this was added 1-(4-chlorophenyl)-5-iodo-1-pentyne (2.70 g, 9.5 mmol) over 5 minutes, and this solution was stirred overnight at room temperature. The reaction mixture was quenched in water, and the solid that was obtained was recrystallized from methanol to give 1.59 g of the title compound as colorless crystals, m.p. 172-174°; NMR (CDCl3) δ 1.59 (m, 1H); 2.0 (m, 1H); 2.36 (dq (doublet of quartets?), 1H); 2.5 (t, 2H); 2.67 (dq, 1H); 3.88 (s, 3H); 7.0 (d, 2H); 7.26 (s, 4H) 7.86 (d, 2H).

Provenance & Evidence