Vi. Potkin et al., Azolyl derivatives of nitrohalobutadienes: IV. Synthesis of 4-amino derivatives of 1-azolyl-1-arylamino-2-nitrotrihalo-1,3-butadienes, RUSS J ORG, 36(6), 2000, pp. 877-883
Reactions of 1-(benzotriazol-1-yl)-1-(4-R-phenylamino)- and 1-(3,5-dimethyl
pyrazol-1-yl)-1-(4-R-phenylamino)-2-nitro-3,4,4-trichloro-1,3-butadienes an
d also 1-(benzotriazol-1-yl)-1-(4-R-phenylamino)- and 1-(3,5-dimethylpyrazo
l-1-yl)-1-(4-R-phenylamino)-2-nitro-4-bromo-3,4-dichloro-1,3-butadienes (R
= EtO, MeO, Me) with amines proceed with replacement of the terminal chlori
ne in the trichlorovinyl group or of bromine in the bromodichlorovinyl grou
p by an amine rest to yield the corresponding 1-azolyl-4-amino-1-arylamino-
2-nitro-3,4-dichloro-1,3-butadienes When binucleophilic reagents (ethylened
iamine and 2-aminoethanol) are used only one N-nucleophilic site of the nuc
leophile takes part in the reaction.