Iodoethane → 6-nitro-3-ethyl-2(3H)-benzothiazolone

Beteiligte Stoffe

Reaktionsschritte

A solution of 6-nitro-2-benzothiazolinone (2.5 g, 12.7 mmol) in anhydrous N,N-dimethylformamide (25 mL) under N2 is treated with 1,8-diazabicyclo[5.4.0]undec-7-ene (2.48 mL, 16.6 mmol) dropwise followed by iodoethane (1.22 mL, 15.3 mmol). Following a slight exotherm, the reaction mixture is stirred at ambient temperature for 21 h, diluted with water (20 mL) and filtered to give the title compound, mp 200-203° C.

Herkunft & Nachweise