Wei Leping, Deng Xin, Yu Xiaohui, Li Xiaohui, Wang Wei, Zhang Chunfang, Xiao Jinchong
College of Chemistry and Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, Hebei University, Baoding 071002, PR China.
Department of Chemistry, College of Science, Hebei Agricultural University, Baoding 071001, PR China.
J Org Chem. 2021 Dec 17;86(24):17535-17542. doi: 10.1021/acs.joc.1c00989. Epub 2021 Oct 13.
Two novel double π-extended []helicene ( = 5, 6) derivatives ( and ) including pentagonal rings have been synthesized and characterized. Both of them have three isomers containing two enantiomers (), (), and a diastereoisomer in a meso form (,). X-ray single crystal analyses suggest that molecules and exhibit offset packing models of (,)- and (,)-isomers. Optical resolution of the resultant compound was finished, and their chiroptical properties, as well as the DFT calculations, were also examined.
已经合成并表征了两种新型的双π-扩展[ ]并苯（ = 5, 6）衍生物（ 和 ），其中包括五边形环。它们都有三种异构体，包含两种对映体（ ）、（ ）和一种内消旋形式的非对映异构体（ ， ）。X射线单晶分析表明，分子 和 呈现（ ， ）-异构体和（ ， ）-异构体的错位堆积模型。完成了所得化合物 的光学拆分，并研究了它们的手性光学性质以及密度泛函理论（DFT）计算。
