Effect of the internal reference on ASIS correlations: 3—Intrinsic ASIS of formyl protons

✍ Scribed by J. Fernández Bertrán; M. Rodríguez

• Publisher: John Wiley and Sons
• Year: 1984
• Tongue: English
• Weight: 314 KB
• Volume: 22
• Category: Article
• ISSN: 0749-1581
• DOI: 10.1002/mrc.1270220202

✦ Synopsis

The inthsic ASIS of formyl protons in pX-benzaldehydes, dimethylformamide and diphenylformamide in a series of aromatic hydrocarbon solvents have been calculated. These values of &a of the formyl protons present excellent correlations in aromatic hydrocarbon solvents, and are factorizable into solute and solvent factors U, and V , , respectively. The V, values are linearly related to the value of a, o f the substituent in the solute. The V, values depend on the substitution pattern of the benzene ring of the solvent molecules. Ethylbenzene -0.208 -0.383 -0.403 -0.552 -0.713 -0.771 -0.931 -0.463 -0.371 tert-Butyl bmenzene -0.