Substituent effects by 19F nuclear magnetic resonance: Polar and π-electron effects
Keyword(s):
A number of model substituted bicyclic aryl fluorides, including three new fluorobenzocycloalkenes, have been synthesized and their fluorine- 19 spectra measured. An analysis of the data leads to the important conclusion that electrostatic-field effects play an important role in determining aryl 19F chemical shifts. Further the relative π-electron distributions of several benzocycloalkenes are indicated.
1985 ◽
Vol 50
(7)
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pp. 1079-1087
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1985 ◽
pp. 2505
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1987 ◽
pp. 1043
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1972 ◽
Vol 76
(11)
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pp. 1593-1596
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1979 ◽
pp. 360
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Keyword(s):