作者:Michael J. Cook、Khalida A. Nasri
DOI:10.1002/mrc.1260250717
日期:1987.7
13C chemical shift data are reported for a series of para-substituted 1-methyl-1-phenylcyclohexanes at 22 and -100 °C. The magnitudes of the SCS at alkyl and cycloalkyl carbon positions are discussed. The SCS at C-methyl and C-4 are significantly different in the two chair conformations. The variation at C-methyl is appraised in terms of the orientation of the aromatic ring.
报告了一系列对位取代的 1-甲基-1-苯基环己烷在 22 ℃ 和 -100 ℃ 下的 13C 化学位移数据。讨论了烷基和环烷基碳位的 SCS 值大小。在两种椅子构象中,C-甲基和 C-4 位置的 SCS 有显著差异。从芳香环的取向角度评估了 C-甲基的变化。