反应详情

4-Nitrostyrylsulfonyl chloride (2.5 g., 0.01 mole) is added portion-wise to a solution of 4-nitrobenzamidine (1.65 g., 0.01 mole), prepared according to the procedure of L. Weintraub, et al., J. Org. Chem., 33, 1679 (1968), and triethylamine (1.01 g., 0.01 mole) in 50 ml. of acetone at 10° C. After stirring for a period of 1 hr. at 25° C., the mixture is concentrated under reduced pressure and the residual material stirred with water and collected. Triturating the filter cake with acetone provides N-(4-NITROSTYRYLSULFONYL)-4-NITROBENZAMIDINE, m.p. 173°-177° C.

1. customprepared
2. customat 10° C
3. concentrationat 25° C., the mixture is concentrated under reduced pressure
4. stirringthe residual material stirred with water
5. customcollected
6. customTriturating the filter cake with acetone