Substituent and Solvent Effects on the Tautomeric Equilibria of N-Substituted α-(Aminomethylene)purine-6-acetonitrile Derivatives

Substituent and solvent effects on the tautomeric equilibration (E/Z) of α-(N-alkyl and -arylaminomethylene)-9-(methoxymethyl)-9H-purine-6-acetonitriles (3a-q) have been studied by means of proton nuclear magnetic resonance spectroscopy in protic and aprotic solvents at 25°C. In chloroform-d these c...

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Veröffentlicht in:	Chemical & pharmaceutical bulletin 1990/12/25, Vol.38(12), pp.3253-3256
Hauptverfasser:	HAMAMICHI, Norimitsu, MIYASAKA, Tadashi
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemistry Exact sciences and technology Heterocyclic compounds Heterocyclic compounds with several n hetero atoms in the same ring, in separated rings or in fused rings hydrogen bonding Organic chemistry Preparations and properties solvent effect substituent effect taulomeric equilibrium α-(aminomethylene)purine-6-acetonitrile
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