Synthesis of 2-Acylthiophenes by Palladium-Catalyzed Addition of Thiophenes to Nitriles
作者:Tao-Shan Jiang、Guan-Wu Wang
DOI:10.1002/adsc.201300843
日期:2014.2.10
AbstractA direct synthesis of 2‐acylthiophenes has been developed through palladium‐catalyzed addition of thiophenes to nitriles. The reaction proceeded well under the palladium(II) acetate/2,2′‐bipyridine system and using D‐(+)‐camphorsulfonic acid as the additive. In addition, the obtained 2‐acylthiophenes could undergo further coupling reactions to generate novel products.magnified image
Synthesis of Thiophene-Substituted 3<i>H</i>-Naphtho[2,1-<i>b</i>]pyrans, Precursors of Photomodulated Materials
The synthesis of 3H-naphtho[2,1-b]pyrans 9–21 linked to a thiophene moiety is described. Two different synthetic approaches were applied to prepare these novel functionalized compounds, and their spectrokinetic properties in solution are reported.
3的合成ħ -萘并[2,1- b ]吡喃9 - 21连接于噻吩部分进行说明。两种不同的合成方法被用于制备这些新颖的功能化化合物,并报道了它们在溶液中的光谱动力学性质。
Oligothiophene-Linked Bisnaphthopyrans: Sequential and Temperature-Dependent Photochromism
作者:Weili Zhao、Erick M. Carreira
DOI:10.1002/chem.200600958
日期:2007.3.16
Photochromic bisnaphthopyrans linked with oligothiophenes were synthesized and their photochromic behavior studied. Sequential and temperature-dependentphotochromism was observed in the oligothiophene linked bisnaphthopyrans. The kinetics of photo and thermal processes in bisnaphthopyrans in comparison with naphthopyrans were studied. Substituent and linking effects on the photochromic properties