454183-99-4Relevant academic research and scientific papers
Palladium-catalyzed oxidative cross-coupling between heterocycles and terminal alkynes with low catalyst loading
Jie, Xiaoming,Shang, Yaping,Hu, Peng,Su, Weiping
supporting information, p. 3630 - 3633 (2013/04/23)
Direct: With [Pd2(dba)3] as a catalyst, the direct alkynylation of thiophenes bearing a variety of substituents has been accomplished by using terminal alkynes as alkynylating reagents. This protocol is also applicable to other electron-rich aromatic heterocycles. dba=dibenzylidenacetone. Copyright
Synthesis and structural properties of cyclophanes containing thiophene rings in the side-chain
Taticchi, Aldo,Marrocchi, Assunta,Minuti, Lucio,Landi, Selvaggia,Gacs-Baitz, Eszter
, p. 1249 - 1257 (2007/10/03)
The synthesis of some cyclophanes bearing in the linear side-chain carbon-carbon triple bonds conjugated with thiophene rings has been reported. Structure analysis of the products based on extensive NMR investigation is presented. UV-Vis absorption spectra and fluorescence spectra have been measured. The analysis of the spectra points out a correlation between the maxima and the structure of the side-chain. The replacement of a benzene ring with a thiophene ring causes a bathochromic shift when the benzene ring close to the paracyclophane moiety is replaced.
