作者:Akira Kasahara、Taeko Izumi、Iwao Shimizu、Masahiro Satou、Takao Katou
DOI:10.1246/bcsj.55.2434
日期:1982.8
[2]Paracyclo[2]paracyclo[2](1,8)naphthalenophan-9-ene-1,17-diyne, [0]paracyclo[2]paracyclo[0](5,6)acenaphthenophan-7-ene, and [2]paracyclo[2]paracyclo[2](5,6)acenaphthenophan-9-ene-1,17-diyne, were synthesized by intramolecular reductive coupling reaction of the corresponding carbonyl compounds with low-valent titanium reagent. The structures of the compounds were elucidated by NMR analyses, and the transannular π-electronic interactions between two benzene rings were examined on the basis of electronic spectra.
通过分子内还原偶联反应与低价钛试剂合成了[2]对并环[2]对并环[2](1,8)萘-9-烯-1,17-二炔、[0]对并环[2]对并环[0](5,6)苊-7-烯和[2]对并环[2]对并环[2](5、6)苊-9-烯-1,17-二炔是通过相应羰基化合物与低价钛试剂的分子内还原偶联反应合成的。通过核磁共振分析阐明了这些化合物的结构,并根据电子能谱研究了两个苯环之间的跨annular π-电子相互作用。