Method for Aerobic Oxidative Coupling of Thiophenes with a Ligand-Supported Palladium Catalyst
申请人:Wisconsin Alumni Research Foundation
公开号:US20190210993A1
公开(公告)日:2019-07-11
An oxidative homocoupling method of synthesizing certain 2,2′-bithiophenes from thiophenes using oxygen as the terminal oxidant is disclosed. In non-limiting examples, the method uses oxygen along with a catalytic system that includes palladium, an assistive ligand, and a non-palladium metal additive to catalyze one of the following reactions:
Associated catalytic systems and compositions are also disclosed.
SEMICONDUCTOR MATERIALS PREPARED FROM BRIDGED BITHIAZOLE COPOLYMERS
申请人:Mishra Ashok Kumar
公开号:US20130144065A1
公开(公告)日:2013-06-06
The present invention provides semiconducting compounds, oligomers and polymers of formula wherein A
1
and A
2
can be the same or different and are S or Se, E is selected from the group consisting of The compounds, oligomers and polymers of formula of formula (1) are suitable for use in electronic devices such as organic field effect transistors.
SEMICONDUCTOR MATERIALS PREPARED FROM BRIDGED BITHIAZOLE COMPOLYERS
申请人:BASF SE
公开号:US20150162546A1
公开(公告)日:2015-06-11
The present invention provides semiconducting compounds, oligomers and polymers of formula
wherein
A
1
and A
2
can be the same or different and are S or Se,
E is selected from the group consisting of
The compounds, oligomers and polymers of formula of formula (1) are suitable for use in electronic devices such as organic field effect transistors.
Method for aerobic oxidative coupling of thiophenes with a ligand-supported palladium catalyst
申请人:Wisconsin Alumni Research Foundation
公开号:US10858334B2
公开(公告)日:2020-12-08
An oxidative homocoupling method of synthesizing certain 2,2′-bithiophenes from thiophenes using oxygen as the terminal oxidant is disclosed. In non-limiting examples, the method uses oxygen along with a catalytic system that includes palladium, an assistive ligand, and a non-palladium metal additive to catalyze one of the following reactions:
Associated catalytic systems and compositions are also disclosed.
Synthesis and Characterization of Fused Pyrrolo[3,2-<i>d</i>:4,5-<i>d′</i>]bisthiazole-Containing Polymers
作者:Mohammed Al-Hashimi、John G. Labram、Scott Watkins、Majid Motevalli、Thomas D. Anthopoulos、Martin Heeney
DOI:10.1021/ol102344m
日期:2010.12.3
The synthesis of a novel electron-deficient fused pyrrolo[3,2-d:4,5-d']bisthiazole is reported from 2-bromothiazole. This was copolymerized with thiophene, selenophene, thienothiophene, and bithiophene by microwave-assisted Stille polycondensation. The resulting polymers exhibited small optical band gaps combined with low-lying HOMO energy levels and demonstrated semiconducting behavior in organic field effect transistors.