New polycyclic aromatic hydrocarbons with seven fused rings
作者:F.A. Vingiello、L. Ojakaar
DOI:10.1016/0040-4020(66)80056-x
日期:1966.1
Four new polycyclic aromatic hydrocarbons containing seven fusedrings have been synthesized and their properties described. The spectral data relating to the new compounds are discussed and Clar's principles of annelation have been applied to substantiate the assigned structures.
Improved Synthesis of Aryl-Substituted Anthracenes and Heteroacenes
作者:Guijie Li、Shaolin Zhou、Guowei Su、Yuanhong Liu、Peng George Wang
DOI:10.1021/jo7017334
日期:2007.12.1
[Graphics]A Bronsted acid-catalyzed highly efficient construction,of substituted arylanthracenes and heteroacenes is described, which is assumed to be initiated through the facile formation of a benzylic cation intermediate. This method offers several advantages in comparison with known aromatic cyclodehydration reactions such as high selectivities, mild reaction conditions, and easily accessible starting materials.
An Unusual Elbs-type Reaction Observed during a Study of the Cyclization of Ketones<sup>1,2</sup>
作者:Frank A. Vingiello、Alexej BoŘkovec、Walter Zajac