15N NMR spectra, tautomerism and diastereomerism of 4,5-dihydro-1H-1,2,3-triazoles

被引：19

作者：

Banert, K

Lehmann, J

Quast, H

Meichsner, G

Regnat, D

Seiferling, B

机构：

[1] Tech Univ Chemnitz, Inst Chem, D-09111 Chemnitz, Germany

[2] Univ Wurzburg, Inst Organ Chem, D-97074 Wurzburg, Germany

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2 | 2002年 / 01期

关键词：

D O I：

10.1039/b107326e

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Despite the great number of 4,5-dihydro-1H-1,2,3-triazoles synthesized, N-15 NMR data of these heterocycles are extremely rare. The aim of this paper is to present such data and examples of their application. The Compounds investigated have been synthesized according to the given references or procedures. Their N-15 NMR spectra were measured at natural abundance. For some compounds, the chemical shift assignments were confirmed with the help of N-15 labelled material. The influences on N-15 chemical shifts of substitution pattern, solvent and concentration were investigated. Additionally, some lanthanide induced shift (LIS) investigations were performed. C-13 labelled compounds were employed as tools to provide the assignment of tautomeric structures.

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页码：126 / 134

页数：9

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