Organic photochemistry with 6.7-eV photons: photoisomerization of tricyclo[3.2.1.02,4]oct-6-ene (endo and exo) and tricyclo[3.2.2.02,4]non-6-ene (endo and exo)
Application of electron spin resonance spectroscopy to problems of structure and conformation. XXIX. Aliphatic semidiones. XXIX. Cycloheptane-1,2-semidione
A Cyclopropyl Group Shows Reverse Facial Selectivity Depending on the Bicyclic Ring System
作者:Motonori Tsuji、Tomohiko Ohwada、Koichi Shudo
DOI:10.1016/s0040-4039(97)01567-0
日期:1997.9
We describe a reverse perturbation effect of a cyclopropyl group on facial selectivities in two bicyclic systems, bicyclo[2.2.2]octane and norbornane (bicyclo[2.2.1]heptane). In terms of facial selective behavior, the cyclopropyl group embedded in the bicyclo[2.2.2]octene seems to be equivalent to a substitution of an electron-withdrawing group, although this is in sharp contrast to the conventional
Geibel,K., Chemische Berichte, 1970, vol. 103, p. 1637 - 1644
作者:Geibel,K.
DOI:——
日期:——
Corner versus Edge Protonation of Cyclopropane
作者:Andrew Burritt、James M. Coxon、Peter J. Steel
DOI:10.1021/jo00128a046
日期:1995.11
Acid-catalyzed addition of methanol to 1 occurs by rupture of the internal carbon-carbon bond of the cyclopropane to give 2 with both retention and inversion at the site of electrophilic attack (4:5, 1.3:1.0). Nucleophilic attack occurs with inversion without relaxation of the corner- and edge-protonated cyclopropanes to a secondary cation.
DE, LUCCHI, O.;PASQUATO, L., GAZZ. CHIM. ITAL., 1984, 114, N 7-8, 349-354