Sterically crowded cyclohexanes-2 synthesis, structure and dynamics of hexaspiro[2.0.3.0.2.0.3.0.2.0.3.0]heneicosane
作者:LutzFitjer、Ulrich Klages、Walter Kuhn、David S. Stephenson、Gerhard Binsch、Mathias Noltemeyer、Ernst Egert、George M. Sheldrick
DOI:10.1016/s0040-4020(01)98808-8
日期:——
The synthesis, structure and dynamics of hexaspiro[2.0.3.0.2.0.3.0.- 2.0.3.0]heneicosane are described. adopts a chair conformation in the crystal state but prefers a chair-to-twistboat equilibrium in solution. The activation parameters of the chair-to-chair interconversion of and the closely related hexaspiro[2.0.2.0.2.0.2.0.2.0.2.0]- octadecane ([6]rotane) have been determined by DNMR. Some consequences
作者:J. L. E. Erickson、Frank E. Collins、Benny L. Owen
DOI:10.1021/jo01340a030
日期:1966.2
Sterically crowded cyclohexanes - 71). synthesis, crystal structure, conformation and dynamics of hexaspiro[2.0.3.0.2.0.3.0.3.0.3.0]docosane and hexaspiro[2.0.3.0.3.0.3.0.3.0.3.0]tricosane