CAS: 52431-30-8; 2,5-Dibromo-3,4-Dinitrothiophene

2,3,5-三溴噻吩置于硫酸,硝酸体系中,化学反应生成 2,5-二溴-3,4-二硝基噻吩
参考文献:Rosenberg,Chemische Berichte,1885,Vol. 18,P. 3030
标题:Rosenberg,Chemische Berichte,1885,Vol. 18,P. 3030

专利信息

专利号:US-7298541-B2
优先权日:2002-06-25
标 题 :Green electrochromic (EC) material and device
发明人：LIU LU; XU CHUNYE; TAYA MINORU
权利人:UNIV WASHINGTON
摘要:Three green EC materials based on thiophene, and a green EC material based on pyrazine are disclosed. A first thiophene derivative (2,3-Di-thiophen-2-yl-thieno[3,4-b]pyrazine), which was previously investigated as a nonlinear optical material, is here disclosed for its use as an EC material, and for its incorporation into an EC device. Synthesis of two new thiophene derivatives (2,5-di(thien-2-yl)-3,4-di(2,2,2-trifluoro-ethoxy)-thiophene and 2,5-(2,3-dihydro-thieno[3,4-b][1,4]dioxin-5-yl)-3,4-di(2,2,2-trifluoro-ethoxy)-thiophene), and a new pyrazine derivative (2,3-dibenzyl-5,7-di(thien-2-yl)thieno[3,4-b]pyrazine) are also disclosed, since these materials are all able to selectively change to a green color state, and can be polymerized to achieve a green EC polymer.

专利号:US-2009067030-A1
优先权日:2002-06-25
标 题 :Synthesis of green electrochromic materials

专利号:US-8154787-B2
优先权日:2002-06-25
标题:Electrochromic materials
发明人：LIU LU; XU CHUNYE; TAYA MINORU
权利人:LIU LU; XU CHUNYE; TAYA MINORU; UNIV WASHINGTON
摘要:Green electrochromic (EC) materials based on thiophene, and a green EC material based on pyrazine are disclosed. A first thiophene derivative (2,3-Di-thiophen-2-yl-thieno[3,4-b]pyrazine), which was previously investigated as a nonlinear optical material, is here disclosed for its use as an EC material and for its incorporation into an EC device. Synthesis of two new thiophene derivatives (2,5-di(thien-2-yl)-3,4-di(2,2,2-trifluoro-ethoxy)-thiophene and 2,5-(2,3-dihydro-thieno[3,4-b][1,4]dioxin-5-yl)-3,4-di(2,2,2-trifluoro-ethoxy)-thiophene), and a new pyrazine derivative (2,3-dibenzyl-5,7-di(thien-2-yl) thieno[3,4-b]pyrazine) are also disclosed, since these materials are all able to selectively change state to appear a green color and can be polymerized to achieve a green EC polymer.