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Neue kondensierte Stickstoff‐reiche Heterocyclen aus 5,6‐Dichlorpyrazin‐2,3‐dicarbonitril
Author(s) -
Ried Walter,
Tsiotis Georgios
Publication year - 1988
Publication title -
liebigs annalen der chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 0170-2041
DOI - 10.1002/jlac.198819881217
Subject(s) - chemistry , hydrazine (antidepressant) , hydrate , chlorine , nitrogen , medicinal chemistry , polymer chemistry , organic chemistry , chromatography
New Fused Nitrogen‐Rich Heterocycles from 5,6‐Dichloropyrazine‐2,3‐dicarbonitrile In the easily accessible 5,6‐dichloropyrazine‐2,3‐dicarbonitrile ( 1 ) the chlorine atoms can be readily exchanged by amines yielding the new pyrazinedicarbonitriles 2 – 5 , which upon treatment with hydrazine hydrate form the nitrogen‐rich heterocycles 6 – 9 .