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Ten π ‐electron nitrogen heterocyclic compounds:X the syntheses and structure determinations of some 1,2,4‐triazolopyrimidines
Author(s) -
Paudler William W.,
Helmick Larry S.
Publication year - 1966
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570030306
Subject(s) - chemistry , nitrogen , nuclear magnetic resonance spectroscopy , organic chemistry , medicinal chemistry , stereochemistry
It has been shown that the reaction of 2‐hydrazinopyrimidines with ethyl orthoesters yields 1,2,4 ‐triazolo[4,3 ‐a]pyrimidines as well as 1,2,4‐triazolo[1,5‐a]pyrimidines. The structures of the parent compounds and of some methyl derivatives have been established by NMR spectroscopy.