Reference

Substituent effects by fluorine-19 nuclear magnetic resonance: polar and

Substituent effects by fluorine-19 nuclear magnetic resonance: polar and .pi.-electron effects.Several substances are used for example 700-84-5 and 62590-16-3 which are their cas registry numbers. Adcock, William; Das Gupta, Bhagwan; Khor, T. C. (Flinders Univ. South Australia, Bedford Park, Aust.). Aust. J. Chem., 29(12), 2571-81 (English) 1976. CODEN: AJCHAS. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) A no. of model substituted bicyclic aryl fluorides, including 3 new fluorobenzocycloalkenes, were synthesized and their fluorine-19 spectra measured. An anal. of the data led to the important conclusion that electrostatic-field effects play an important role in detg. aryl 19F chem. shifts. Further, the relative .pi.-electron distributions of several benzocycloalkenes are indicated. .