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v ‐Triazolines—IV: NMR configuration assignment of 5‐dialkylamino‐ v ‐triazolines
Author(s) -
Stradi Riccardo,
Pocar Donato,
Bianchetti Giuseppe
Publication year - 1972
Publication title -
organic magnetic resonance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0030-4921
DOI - 10.1002/mrc.1270040206
Subject(s) - chemistry , hydrogen atom , atom (system on chip) , amine gas treating , absolute configuration , hydrogen bond , stereochemistry , group (periodic table) , molecule , organic chemistry , computer science , embedded system
A series of 1‐aryl‐5‐amino‐4,5‐dihydro‐ v ‐triazoles bearing at least one hydrogen atom at the C‐4 position has been prepared. The NMR features of the above compounds have been studied with the purpose of differentiating the triazolines with a trans configuration from those with a cis configuration. It has been shown that the hydrogen atom at C‐4 lying on the same side of the amine group at C‐5 always resonates at lower field than the hydrogen atom on the opposite side. This rule can be applied for identifying the configuration of the 5‐amino‐ v ‐triazolines.