ethanol; sodium acetate; acetic acid in water
addn. of 150 ml alc. to 250 ml of a Na3{Co(NO2)6}-soln.; cooling with ice; addn. of a soln. of 33 g p-toluidine, 5 g CH3COONa and 10 g glacial acetic acid in 130 ml alc. and 100 ml water; standing for a longer period of time;; pptn. of yellow diazoaminotoluene and red crystals; sucking off; washing with water and a small amount of alc.; dissolving the diazoaminotoluene in ether;;
参考文献
Hofmann, K. A.; Buchner, K.
Ber., 1928 , vol. 41, p. 3087 - 3087
