PROCESS FOR THE PREPARATION OF BENZODITHIOPHENE COMPOUNDS
申请人:ENI S.P.A
公开号:US20140235874A1
公开(公告)日:2014-08-21
The present invention relates to a process for the preparation of benzodithiophene compounds which comprises reacting a derivative of 3,3′-bithiophene with at least one internal alkyne. Said benzodithiophene compounds can be suitably functionalized and polymerized to give electron-donor compounds which can be used in photovoltaic devices such as, for example, photovoltaic cells, photovoltaic modules, solar cells, solar modules, on both rigid and flexible supports. Furthermore said benzodithiophene compounds can be advantageously used as spectrum converter in luminescent solar concentrators (LSCs). Said benzodithiophene compound can also be advantageously used as precursor of monomeric units in the preparation of semiconductor polymers.
US8853425B2
申请人:——
公开号:US8853425B2
公开(公告)日:2014-10-07
The versatile role of norbornene in C–H functionalization processes: concise synthesis of tetracyclic fused pyrroles via a threefold domino reaction
作者:Kersten M. Gericke、David I. Chai、Mark Lautens
DOI:10.1016/j.tet.2008.01.146
日期:2008.6
The synthesis of novel tetracyclic fused pyrrolesfrom 1-(2-iodophenyl)-1H-pyrrole and various bromoalkyl-aryl alkynes via a palladium(0)-catalyzed and norbornene-mediated threefold domino reaction is reported. PdCl2 and tri-2-furylphosphine (TFP) in the presence of norbornene and Cs2CO3 in CH3CN at 90 °C gave a variety of tetracyclic fused pyrroles in usually high yields. In the described reaction
报道了通过钯(0)催化和降冰片烯介导的三重多米诺反应,由1-(2-碘苯基)-1 H-吡咯和各种溴代烷基-芳基炔烃合成新型四环稠合吡咯。在降冰片烯和Cs 2 CO 3在90°C的CH 3 CN中存在时,PdCl 2和三-2-呋喃基膦(TFP)可以通常以高收率得到各种四环稠合吡咯。在所描述的反应顺序中,三个碳-碳键中的两个是通过未活化的芳基C-H键的官能化形成的。