78771-28-5Relevant academic research and scientific papers
Synthesis of dinitro-substituted furans, thiophenes, and azoles
Katritzky, Alan R.,Vakulenko, Anatoliy V.,Sivapackiam, Jothilingam,Draghici, Bogdan,Damavarapu, Reddy
, p. 699 - 706 (2008/09/21)
Direct nitration of the corresponding mononitro furans with fuming nitric acid, thiophenes with acetyl nitrate, and thiazoles with trifluoroacetyl nitrate, gave dinitro-substituted furans, thiophenes, and thiazoles. The nitrations of 2-alkylthiophenes wit
The synthesis of highly active thiophene ring-containing chromophore components for photonic polymers based on a newly designed route
Yuquan, Shen,Yuxia, Zhao,Zao, Li,Jianghong, Wang,Ling, Qiu,Shixiong, Liu,Jianfeng, Zhai,Jiayun, Zhou
, p. 3691 - 3695 (2007/10/03)
2-Aminothiophene derivatives are the key intermediates for the present synthesis. It is known that the synthesis of 2-aminothiophene is troublesome although it is a rather simple heterocycle. In this work, an early report was newly developed as a basis for the efficient synthesis of thiophene-ring-containing chromophore components for photonic polymers. 2-Amino-5-nitrothiophene and 2-amino-3,5-dinitrothiophene were synthesized in excellent yield. After diazotization, the 2-aminothiophene derivatives were directly treated with N-phenyldiethanolamine to afford two-electron push-pull compounds. A similar styryl compound was also prepared. All of these chromophore molecules have further polymerizable hydroxy groups on one end of the molecule. These compounds are currently showing interesting potential in making highly sensitive, nonlinear optical polymeric materials. The Royal Society of Chemistry 1999.
