作者:J.W. Diesveld、J.H. Borkent、W.H. Laarhoven
DOI:10.1016/0040-4020(82)80254-8
日期:1982.1
Phenanthro[3,4-c]fluorenone (5) and phenanthro[3,4-c]fluorene (1) have been prepared from hexahelicene-5,6-quinone. The effect of the presence of a five-membered ring on the helical conformation has been studied by comparison of NMR data of 1 and 5 with those of hexahelicene. Force field calculations of the structure of 1 agree with the results of the NMR analysis.
苯并[3,4-c]芴酮(5)和苯并[3,4-c]芴(1)是由己烯-5,6-醌制备的。通过比较1和5的NMR数据与六螺旋的NMR数据,研究了五元环的存在对螺旋构象的影响。结构1的力场计算与NMR分析的结果一致。