Halogenation of Cubane under Phase-Transfer Conditions: Single and Double C−H-Bond Substitution with Conservation of the Cage Structure
作者:Andrey A. Fokin、Oliver Lauenstein、Pavel A. Gunchenko、Peter R. Schreiner
DOI:10.1021/ja0032677
日期:2001.3.1
abstraction is more unfavorable (DeltaG(double dagger)(298) = 4.6 and 12.0 kcal/mol). Our computational results nicely agree with the behavior of 1 under PT halogenation conditions (where Hal(3)C(*) is involved in the activation step) and under free-radical photohalogenation with Hal(2) (Della, E. W., et al. J. Am. Chem. Soc. 1992, 114, 10730). The incorporation of a second halogen atom preferentially in
Proton magnetic resonance spectra of cubane derivatives. I. Syntheses and spectra of mono- and 1,4-disubstituted cubanes
作者:John T. Edward、Patrick G. Farrell、Gordon E. Langford
DOI:10.1021/ja00427a003
日期:1976.5
Kawai, N. T.; Gilson, D. F. R.; Britten, J. F., Canadian Journal of Chemistry, 1992, vol. 70, # 3, p. 910 - 914
作者:Kawai, N. T.、Gilson, D. F. R.、Britten, J. F.、Butler, I. S.、Farrell, P. G.
DOI:——
日期:——
A body-diagonal bond in cubane: can it be introduced?
作者:Karin Hassenruck、Juliusz G. Radziszewski、V. Balaji、Gudipati S. Murthy、Allan J. McKinley、Donald E. David、Vincent M. Lynch、Hans Dieter Martin、Josef Michl
DOI:10.1021/ja00158a061
日期:1990.1
Molecular Reorientation and Self-Diffusion in Solid Cubane by Deuterium and Proton NMR
On transition to solid I there is also a discontinuous increase in the rate of this process. The proton T1 values are predominantly affected by the reorientation process and are consistent with the deuteron data. At temperatures above 340 K, where the deuterium NMR spectrum is expected to be a single Lorentzian with a width of less than 400 Hz, it actually exhibits, in both phases II and I, a Pake doublet