Abundant data have been accumulated to indicate that cyclopropyl group to the carbonium-ion center occurs best not from the parallel one (II).') the electronic contribution of the from the bisected arrangement (I) and II This has been successfully shown by the studies of the rates of solvolysis of I
“One-electron” reducibility of the substituted tropylium ions with the chromous ion
✍ Scribed by Kunio Okamoto; Koichi Komatsu; Osamu Murai; Osamu Sakaguchi
- Book ID
- 104236983
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- French
- Weight
- 203 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
+ hydrocarbon cations have been the focus of attention ever since tropylium (Tr + ) was predicted to be highly stable. [1] It fulfills Hückels rule and is the most common textbook example for aromaticity after benzene. However, the rivalry with its energetically close-lying isomer, benzylium (Bz + )
A recent MINDO/3 calculation of some substituted tropylium ions (IJ suggests that substituents R = NH2, OH, OCH3, F, Cl, CH3, CN "seem to provide no conjugative stabilization" of the ion2). The influence of substituents on the positively charged tropylium system is believed to be approximately the s