Fluorine deshielding in the proximity of a methyl group. An experimental and theoretical study
作者:Gordon W. Gribble、Daniel J. Keavy、Erik R. Olson、Ian D. Rae、Alfred Staffa、Tomas E. Herr、Marta B. Ferraro、Rubén H. Contreras
DOI:10.1002/mrc.1260290504
日期:1991.5
19F chemicalshifts are reported for a series of alkyl‐substituted fluoronaphthalenes and related compounds that exhibit steric crowding around the fluorine atom due to the proximity of methyl groups. Comparisons of these chemicalshifts with others measured in similar compounds but without the corresponding methyl groups show that this crowding effect produces a large low‐field shift of the 19F signal
Unexpected regioselective diels-alder cycloaddition reactions between 3-fluorobenzyne and 2-alkylfurans
作者:Gordon W. Gribble、Daniel J. Keavy、Stephen E. Branzt、William J. Kelly、Mark A. Pals
DOI:10.1016/s0040-4039(00)82311-4
日期:1988.1
C–F⋯HO hydrogen bond in 8-fluoro-4-methyl-1-naphthol
作者:Hiroyuki Takemura、Risako Ueda、Tetsuo Iwanaga
DOI:10.1016/j.jfluchem.2009.05.004
日期:2009.7
The 8-fluoro-4-methyl-1-naphthol forms the intermolecular bifurcated HB, OH center dot center dot center dot(F, HO) in the crystal. This is quite contrasting to the reported results of the ab initio calculations. On the contrary, the intramolecular hydrogen bond in solution was confirmed by H-1, C-13, and F-19 NMR spectra. (C) 2009 Elsevier B.V. All rights reserved.
GRIBBLE, GORDON W.;KEAVY, DANIEL J.;BRANZ, STAPHEN E.;KELLY, WILLIAM J.;P+, TETRAHEDRON LETT., 29,(1988) N 48, C. 6227-6230
作者:GRIBBLE, GORDON W.、KEAVY, DANIEL J.、BRANZ, STAPHEN E.、KELLY, WILLIAM J.、P+