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Zur Reaktivität von Cyanamiden gegenüber akzeptorsubstituierten 1,2,4‐Triazinen
Author(s) -
Seitz Gunther,
John Rainer
Publication year - 1989
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19891220725
Subject(s) - chemistry , reactivity (psychology) , medicinal chemistry , triazine , thiocyanate , stereochemistry , organic chemistry , medicine , alternative medicine , pathology
On the Reactivity of Cyanamides toward Acceptor‐Substituted 1,2,4‐Triazines N ‐substituted cyanamides 2a – d cycloadd exclusively across C‐5/N‐2 of the 1,2,4‐triazine nucleus 1 yielding the bicycle 6 as nonisolable intermediate. Elimination of trifluoroacetonitril leads to the 1,3,5‐triazines 7 as the main reaction products. Besides, the 1,2,4‐triazines 8 are formed by loss of methyl thiocyanate.