13C NMR Spectra of 1-Amino-1,2,3-triazole Derivatives. 2—Identification of 4,5-Unsymetrically Substituted 1-(N,N-Diaroyl)amino-1,2,3-triazotes
✍ Scribed by Nestor A. Rodios
- Publisher
- John Wiley and Sons
- Year
- 1985
- Tongue
- English
- Weight
- 312 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Abstract
The^13^C NMR spectra of some 1‐(N,N‐diaroyl)amino‐1,2,3‐triazole derivatives are reported. The shifts of the methyl carbons attached to the triazole ring and those of C‐4 and C‐5 of the ring were used to distinguish between 4,5‐unsymmetrically substituted derivatives. The location of a methyl group on the 4‐or 5‐position of the ring can be also deduced from the ^1^J CH~3~ value. A complete assignment of the aroyl carbons of the imide moiety is given.
📜 SIMILAR VOLUMES
N NMR chemical shifts were measured for a series of substituted 5-amino-1,2,4-triazoles. The assignment of isomeric structures agrees with earlier results obtained with the use of proton-coupled I3C NMR.
The temperature-dependent (1)H and (13)C NMR spectra of 2-(2-butynyl)-10-methyl-1,2,3,4-tetrahydropyrazino[1,2-a]indole (4) (as a representative example of 1-9) in CFCl(3) + CD(2)Cl(2) solution are described and discussed. Below 183 K, the hexahydropyrazine ring inversions become slow on the NMR tim