Homo- and methano[60]fullerenes with chiral attached moieties - <sup>1</sup>
H and <sup>13</sup>
C NMR chemical shift assignments and diastereotopicity effects
作者:Leonard M. Khalilov、Arthur R. Tulyabaev、Airat R. Tuktarov
DOI:10.1002/mrc.2809
日期:2011.12
1H and 13C NMRchemicalshift predictions of homo‐ and methano[60]fullerenes containing chiral centers in attached fragment were made using the two‐dimensional NMR technique (HH COSY, 1H–13C HSQC and HMBC) and the quantum chemistry GIAO calculation method in the PBE/3ζ approach. The influence of a chiral substituent on the 13C chemicalshifts of diastereotopicfullerene carbons was estimated by comparing
Cycloaddition of cage and polycyclic diazo compounds to C60 fullerene catalyzed by Pd(acac)2-2PPh3-4Et3Al
作者:U. M. Dzhemilev、A. R. Tuktarov、V. V. Korolev、L. M. Khalilov
DOI:10.1134/s0965544111020034
日期:2011.3
Spirohomofullerenes were synthesized by cycloaddition of cage and polycyclic diazoalkanes generated in situ by oxidation of hydrazones of camphor, 2-adamantanone, and cholestane-3-one to C60 fullerene in the presence of the Pd(acac)2-2PPh3-4Et3Al three-component catalyst. It was found that the spiro-homofullerenes obtained from hydrazones of 2-adamantanone and cholestane-3-one and C60 fullerene do not undergo thermal