Preparation and characterization of regioisomerically pure 1,7-disubstituted perylene bisimide dyes |
| |
Authors: | Würthner Frank Stepanenko Vladimir Chen Zhijian Saha-Möller Chantu R Kocher Nikolaus Stalke Dietmar |
| |
Affiliation: | Institutes of Organic Chemistry and Inorganic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany. wuerthner@chemie.uni-wuerzburg.de |
| |
Abstract: | A detailed study on bromination and subsequent imidization of perylene bisanhydride with cyclohexylamine is reported. The present results reveal that previously reported 1,7-difunctionalized perylene bisimides are presumably contaminated with the respective 1,6 regioisomers. N,N'-Dicyclohexyl-1,7-dibromoperylene bisimide 1,7-3 is obtained for the first time in isomerically pure form, and its structure is unequivocally confirmed by X-ray analysis. By using regioisomerically pure 1,7-dibromoperylene bisimide 1,7-3, 1,7-dipyrrolidinylperylene bisimides 4a-c and 1,7-dipyrrolidinylperylene bisanhydride 5 as well as the unsymmetrically difunctionalized 1-bromo-7-pyrrolidinyl- and 1-cyano-7-pyrrolidinylperylene bisimides 7 and 8 are synthesized in good yield. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|