Effect of sp 2 and sp hybridised atoms on barriers to rotation in highly substituted ethanes. Steric acceleration of conformational processes
作者:J. E. Anderson、C. W. Doecke、H. Pearson、D. I. Rawson
DOI:10.1039/p29780000974
日期:——
Barriers to rotation about the central bond of the 1,2,2-trimethylbutyl (triptyl) group, i.e. barriers to rotation of the t-butyl group, are reported for a series of triptyl compounds But–C(CH3)2X, where the atom in X bonded to the triptyl group is an sp2 or sp hybridised carbon. Barriers in some similar compounds are also reported. Results are discussed in terms of the interactions arising during
据报道,一系列三叔丁基化合物Bu t –C(CH 3)2 X绕1,2,2-三甲基丁基(三苯甲基)基团的中心键旋转的障碍,即叔丁基旋转的障碍。,其中X中与三苯甲基键合的原子是sp 2或sp杂化碳。还报道了一些类似化合物中的屏障。根据旋转过程中产生的相互作用以及构象过程的空间加速度讨论了结果。
Lion,C.; Dubois,J.-E., Bulletin de la Societe Chimique de France, 1976, p. 1875 - 1878
作者:Lion,C.、Dubois,J.-E.
DOI:——
日期:——
Howard et al., Journal of Research of the National Bureau of Standards (United States), 1947, vol. 38, p. 391
作者:Howard et al.
DOI:——
日期:——
Fragmentation of tertiary alkyl carbonium ions in sulphuric acid : steric effects.
作者:J.E. Dubois、J.S. Lomas、D.S. Sagatys
DOI:10.1016/s0040-4039(01)96706-1
日期:1971.1
Engel, Paul S.; Wang, Chengrong; Chen, Yanqin, Journal of the American Chemical Society, 1993, vol. 115, # 1, p. 65 - 74
作者:Engel, Paul S.、Wang, Chengrong、Chen, Yanqin、Rüchardt, Christoph、Beckhans, Hans-Dieter