| Literature DB >> 18954063 |
Daniel B Werz1, Alexander Düfert.
Abstract
DFT studies on oligocyclopropenones and related systems 5(n)-9(n) are reported. A strong sigma/pi interaction between the pi system and the sigma framework of the three-membered rings is observed in almost all cases, leading to a perpendicular arrangement of the pi systems in the most favored conformation. Also the shape of cyclic congeners is strongly influenced by sigma/pi interactions.Entities:
Year: 2008 PMID： 18954063 DOI： 10.1021/ol8022566
Source DB: PubMed Journal: Org Lett ISSN： 1523-7052 Impact factor: 6.005