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Synthesis, purification and spectroscopic characterization of potential impurities of hexamethylmelamine
Author(s) -
Talebian Abdolhassen,
Ghiorghis Alem,
Hammer Charles F.,
Murril Evelyn A.,
Pallas Frank
Publication year - 1992
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.5570290452
Subject(s) - chemistry , dimer , triazine , medicinal chemistry , enol , carbon 13 nmr , tris , polymer chemistry , stereochemistry , organic chemistry , catalysis , biochemistry
The syntheses and spectroscopic properties (ir, 1 H nmr, 13 C nmr, uv and ms) of pure samples of 2‐chloro‐4,6‐bis(dimethylamino)‐ s ‐triazine 1 , 4,6‐dichloro‐2‐dimethylamino‐ s ‐triazine 2 , 4,6‐bis(dimethylamino)‐ s ‐triazin‐2(l H )‐one 3 , 4‐chloro‐6‐dimethylamino‐ s ‐triazin‐2(1 H )‐one 4 , 6‐dimethylamino‐ s ‐triazine‐2,4(1 H ,3 H )‐dione 5 , and 2,4,6‐tris(dimethylamino)‐ s ‐triazine (altretamine, HMM) are reported. Evidence for enol‐keto equilibria are also presented for 3 , in which the enol form exhibits as an H‐bonded dimer structure similar to the dimer of organic carboxylic acids.