Monatshefte fur Chemie p. 821 - 828 (1990)
Update date:2022-08-05
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Kaczmarek, Lukasz
Nantka-Namirski, Pawel
<2,2'-Bipyridyl>-3,3'-diamine (1) reacts with ethyl benzimidate hydrochloride (2) to form dipyrido<1,3>diazepine 3.Alkylation of compound 3 with alkyl halides 5 in KOH/DMSO/TBAB yields the corresponding N-alkyl-N'-benzoyl-bipyridinediamines 7 which, after hydrolysis, give N-monosubstituted bipyridinediamines 9.
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(1985)
