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