1-Silaindenes are prepared starting from (2-vinylphenyl)hydrosilanes and alkynes through a ruthenium-catalyzed hydrosilylation-ring-closing-metathesis sequence. The method is successfully applied to the synthesis of molecules containing multiple silaindene units.
본 발명은 인다세노다이벤조티오펜 또는 다이티아-다이사이클로펜타-다이벤조티오펜으로부터 유도된 하나 이상의 반복 단위를 함유하는 신규한 공액 중합체, 이의 제조 방법 및 이에 사용된 유리체 또는 중간체, 이를 포함하는 중합체 배합물, 혼합물 및 제형, 유기 전자식(OE) 장치, 특히 유기 광전자식(OPV) 장치에서 유기 반도체로서 중합체, 중합체 배합물, 혼합물 및 제형의 용도, 및 이러한 중합체, 중합체 배합물, 혼합물 또는 제형을 포함하는 OE 및 OPV 장치에 관한 것이다.
The invention relates to novel conjugated polymers containing one or more repearting units derived from indacenodibenzothiophene or dithia-dicyclopenta-dibenzothiophene, to methods for their preparation and educts or intermediates used therein, to polymer blends, mixtures and formulations containing them, to the use of the polymers, polymer blends, mixtures and formulations as organic semiconductors in organic electronic (OE) devices, especially in organic photovoltaic (OPV) devices, and to OE and OPV devices comprising these polymers, polymer blends, mixtures or formulations.
Synthesis of benzothiophene derivatives from dilithio reagents, sulfur, and electrophiles via electrophilic cyclization
作者:Zitao Wang、Weizhi Geng、Hanliu Wang、Shaoguang Zhang、Wen-Xiong Zhang、Zhenfeng Xi
DOI:10.1016/j.tetlet.2011.10.098
日期:2011.12
Benzothiophene derivatives were synthesized in high yields from readily available o-(alkynyllithio)aryllithio compounds, sulfur, and 2 equiv of acid chlorides or other electrophiles. An acid chloride-induced electrophilic cyclization resulted in the formation of the thiophene ring. (C) 2011 Elsevier Ltd. All rights reserved.
A highly emissive cruciform triarylborane as a ratiometric and solid state fluorescence sensor for fluoride ions
We disclosed a novel cruciform tri-coordinate organoboron compound, 2',5'-bis[(4-dimesitylboryl)phenyl]ethynyl}-1',4'-bis[(4-N,N-diphenylamino)phenyl]-[1,1':4',1']terphenyls, which displays a characteristic intramolecular charge transfer transition and is highly emissive both in solutions and solid state. The complexation with fluoride ions induces a large blue shift in fluorescence, enabling ratiometric fluorescence sensing of fluoride. In addition, its prompt response to fluoride ions was also observed even in the solid state. (C) 2011 Elsevier Ltd. All rights reserved.