Helvetica Chimica Acta p. 1210 - 1214 (1990)
Update date:2022-08-02
Topics:
Legroux, Didier
Brom, Jacques
Fleury, Jean Pierre
The behaviour of 4-morpholino- and 4-(pyrrolidin-1-yl)-2-aza-1,3-diene-1,1-dicarbonitriles 3, and 4 and 10, respectively, in acidic medium is described.The former gives with HBr/AcOH 3-bromopyrazine-2-carbonitrile 6.On the other hand, pyrrolidin-1-yl deri
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