Derivatives of m-di-tert-butylbenzene. Part VII. 1H Nuclear magnetic resonance spectra of some sterically crowded halogenated aromatic compounds

✍ Scribed by Adrianus Jan de Koning

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 434 KB
• Volume: 101
• Category: Article
• ISSN: 0165-0513
• DOI: 10.1002/recl.19821011103

✦ Synopsis

Abstract

The ^1^H NMR spectra of seven series of halogenated derivatives of m‐di‐tert‐butylbenzene have been analysed. The results show that the hydrogen atom between the tert‐butyl groups is screened from the magnetic influence of the halogen atoms. The results also show that the effect of a halogen atom on the chemical shift of hydrogens ortho and meta to halogen is substantially reinforced by a tert‐butyl group buttressing the halogen.