Substituent effects on cyclopropenium ions
RC Kerber, CM Hsu
Index: Kerber,R.C.; Hsu,C.-M. Journal of the American Chemical Society, 1973 , vol. 95, # 10 p. 3239 - 3245
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Citation Number: 53
Abstract
Abstract: A series of substituted diphenylcyclopropenium tetrafluoroborates, Ph&X+ BF4-(I), has been prepared, and their~ KR+ values have been measured by potentiometric titration. The trend observed, R2N>> cC, Hs> OEt> n-CaH7= SMe> Ph> H, indicates conjugative effects still to be predominant in stabilizing these cations, though less so than with most other cations. No evidence of abnormal phenyl effects is found. ...
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