| abstract |
Process: R = haloalkyl or alkoxyalkyl R1 = H, halogen or NO2 R2 = H, halogen, alkyl, haloalkyl, alkoxy or NO2 (I) are known tranquillisers, muscle relaxants, anti-cramp agents and hypnotics. The new process is quick and economical giving high yields of high purity. 7-chloro-1-(ethoxyethyl)-5-phenyl-1,3-dihydro-2H-1,4-benzodiazepi- ne-2-one. |