## Abstract The additivity of the proton and carbon chemical shift increments due to structural changes in a series of conjugate acids derived from benzene polycarboxylic acids is reported. In the acids, two sets of increments had been applied, one to the __ortho__ diacids and one to acids which do
Study of the proton chemical shifts and charge distribution in derivatives of aromatic carboxylic acids
β Scribed by R. M. Aminova; I. D. Morozova; T. A. Zyablikova
- Book ID
- 112432886
- Publisher
- Springer
- Year
- 1969
- Tongue
- English
- Weight
- 385 KB
- Volume
- 18
- Category
- Article
- ISSN
- 1573-9171
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## Abstract The effect of substituents on the proton chemical shifts and spinβspin coupling constants in __ortho__β, __meta__β __and para__βsubstituted 5βphenyltetrazoles (tetrazolic acids) in DMSOβCH~3~CN (1:1, v/v) was studied. With the __meta__β and __para__β substituted compounds the additivity
Proton chemical shifts of the following substituted ortho-dimethoxyphenethylamine derivatives: N-2-(2-nitro-4,5-dimethoxyphenyl)ethylphthalimide (1); N-2-(2-nitro-4,5-dimethoxyphenyl)ethylmaleimide (2); 2-nitro-4,5-dimethoxyphenylethylamine (3); N-2-(2bromo-4,5-dimethoxyphenyl)ethylphthalimide (4);