NMR spectra of monosubstituted alkanes. II isopropyl derivatives
โ Scribed by Gerd Schrumpf
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- French
- Weight
- 218 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
Pergamon prsrs.
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## Abstract Carbonโ13 NMR chemical shifts and oneโbond carbonโhydrogen coupling constants have been obtained at 15ยท09 MHz. The trends in the carbon chemical shifts obtained for the pyrazines parallel those of monosubstituted benzenes and 2โsubstituted pyridines, except for the __direct__ effect of
Proton N M R spectra of ]-substituted 2,4-dimethylbcnzenes (2). I-substituted 2.6dimethylbenzenes (3) and 1-substituted 2,4,6-trimethylbenzenes (4) were determined and the SCS values compared with those of monosubstituted benzenes (1). SCS of 1 are assumed to be primarily due to the effects of x-ele