13C and 11B NMR data of 29 phenylboranes and 9 boron-substituted aromatic heterocycles (thiophene, N-methylpyrrole and furan) are discussed. The observed 13C chemical shifts of the para-carbon atoms in phenylboranes and the corresponding carbon atoms in the aromatic heterocycles are consistent with mesomeric interactions of the boryl group with the aromatic system. The trend of δ(13C(para)) in phenylboranes
讨论了29个苯基硼烷和9个硼取代的芳族杂环(噻吩,N-甲基吡咯和呋喃)的13 C和11 B NMR数据。观察到的苯基硼烷中对位碳原子和芳族杂环中相应碳原子的13 C化学位移与硼基与芳族体系的介观相互作用相一致。苯硼烷中的δ(13 C(para))趋势与等电子苯基碳自由基反应中观察到的趋势相对应。低温13 C NMR和/或13 C 11 B,1使用H}异核三重共振实验来获得与硼键合的碳原子的13 C化学位移。