Pd-catalyzed direct C–H arylation of thieno[3,4-c]pyrrole-4,6-dione (TPD): a step-economical synthetic alternative to access TPD-centred symmetrical small molecules
作者:Shan-Yun Chang、Po-Han Lin、Ching-Yuan Liu
DOI:10.1039/c4ra05380j
日期:——
to access a series of thieno[3,4-c]pyrrole-4,6-dione (TPD)-based π-conjugated molecules through Pd-catalyzed direct C–H arylations. A comprehensive synthetic study including the screening of various kinds of palladium catalysts, ligands, and bases is reported. Under the optimum reaction conditions, TPD and its common derivatives underwent efficient and mild direct C–H arylations with a variety of functionalized
我们演示了通过Pd催化的直接C–H芳基化来访问一系列基于噻吩并[3,4- c ]吡咯-4,6-二酮(TPD)的π-共轭分子的分步经济实用的替代方法。据报道,一项综合的综合研究包括对各种钯催化剂,配体和碱的筛选。在最佳反应条件下,TPD及其常见衍生物通过各种官能化的溴代芳烃进行了高效温和的直接C–H芳基化反应。酯,腈,酮,醛和卤化物等官能团具有良好的耐受性,从而大大扩展了反应范围。我们希望所报道的方法将为材料科学家提供一种相对绿色的合成途径,以有效地制备含TPD的π功能材料。
The Facile Generation of a Tetramethyleneethane Type Radical Cation and Biradical Utilizing a 3,4-Di(α-styryl)furan and a Photoinduced ET and Back ET Sequence
Product analyses and nanosecond time-resolved spectroscopy on laser flashphotolysis were studied for the photoinduced electron-transfer reaction of 3,4-di(alpha-styryl)furan (6a). A combination of these results, kinetic, density functional theoretical (DFT), and time-dependent DFT analyses enabled assignment of the absorption to the tetramethyleneethane (TME)-type radical cation (7a*+, lambda(max)
Total synthesis of monosporascone and dihydromonosporascone
作者:Kathryn A. Punch、Matthew J. Piggott
DOI:10.1039/c4ob00331d
日期:——
The first synthesis of monosporascone has been achieved in five steps and 57% overall yield.
首次合成单孢子酮的过程共分为五个步骤,总产率为57%。
[EN] THIENO, FURO AND SELENOPHENO-[3,4-C]PYRROLE-4,6-DIONE COPOLYMERS<br/>[FR] COPOLYMÈRES DE THIÉNO, FURO ET SÉLÉNOPHÉNO-[3,4-C]PYRROLE-4,6-DIONE
申请人:UNIV LAVAL
公开号:WO2014029014A1
公开(公告)日:2014-02-27
Novel photoactive copolymers based on thieno, furo or selenopheno-[3,4- c]pyrrole-4,6-dione-derivative are described herein. More specifically, the photoactive copolymers comprise repeating units of Formula I -[A1-A2]- I wherein A1 is an electron donating unit such as a mono or polycyclic heteroaryl that is unsubstitued or substituted with one or more C1-20-alkyl or C1-20-alkoxy; and A2 is an alkylfuro or alkylselenopheno-[3,4-c]pyrrole-4,6-dione-derivative. The photoactive copolymers are suitable for use in BHJ solar cells.
Thieno-, Furo-, and Selenopheno[3,4-<i>c</i>]pyrrole-4,6-dione Copolymers: Effect of the Heteroatom on the Electrooptical Properties
作者:Serge Beaupré、Agnieszka Pron、Simon H. Drouin、Ahmed Najari、Lauren G. Mercier、Amélie Robitaille、Mario Leclerc
DOI:10.1021/ma3011894
日期:2012.9.11
conjugated polymers based on furo[3,4-c]pyrrole-4,6-dione (FPD) and selenopheno[3,4-c]pyrrole-4,6-dione (SePD) have been synthesized and compared with their thieno[3,4-c]pyrrole-4,6-dione (TPD) analogues to investigate the effects of the heteroatom on the electrooptical properties. The copolymers were synthesized using either Stille cross-coupling or directheteroarylationpolymerization (DHAP), the
合成并比较了基于呋喃[3,4- c ]吡咯-4,6-二酮(FPD)和硒苯并[3,4- c ]吡咯-4,6-二酮(SePD)的新型推挽共轭聚合物他们的thieno [3,4- c] pyrrole-4,6-dione(TPD)类似物来研究杂原子对电光性质的影响。使用Stille交叉偶联或直接杂芳基化聚合(DHAP)合成共聚物,后一种方法产生高分子量。与TPD类似物相比,对于基于FPD的共聚物(硫被氧取代),观察到了带隙的低变色,而对于SePD(被硒取代的硫)观察到了小红移。这两类新的共轭聚合物具有电光特性,可导致有趣的体异质结塑料太阳能电池。