- Hammett analysis of a family of carbene-carbene complex equilibria
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p-X-substituted phenylchlorocarbenes (X = NO2, CF3, Cl, H, Me, and MeO) form π-type complexes with trimethoxybenzene in pentane. The carbenes and complexes are in equilibrium, and logarithms of the measured equilibrium constants are well correlated by Hammett σp constants with ρ = 2.48. The carbene complexes are characterized by UV-vis spectroscopy, and computational analysis is afforded by DFT calculations.(Figure Presented)
- Wang, Lei,Moss, Robert A.,Thompson, Jack,Krogh-Jespersen, Karsten
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p. 1198 - 1201
(2011/04/27)
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- Reactivity of 1-chloro-3-phenyldiazirines
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p-Substituted 1-chloro-3-phenyldiazirines (5), the putative intermediates of the reaction of N,N,N′-trichlorobenzamidines (10) with excess of bromide ions, react further to afford mixtures of 3-bromo- (4) and 3-chloro-3-phenyldiazirines (6). The 6:4 ratio
- Martinu, Tomas,Dailey, William P.
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p. 5012 - 5015
(2007/10/03)
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