TMSCF
<sub>3</sub>
as a Convenient Source of CF
<sub>2</sub>
=CF
<sub>2</sub>
for Pentafluoroethylation, (Aryloxy)tetrafluoroethylation, and Tetrafluoroethylation
作者:Lingchun Li、Chuanfa Ni、Qiqiang Xie、Mingyou Hu、Fei Wang、Jinbo Hu
DOI:10.1002/anie.201705734
日期:2017.8.7
A new method for the on-site preparation of tetrafluoroethylene (TFE) and a procedure for its efficient use in pentafluoroethylation by fluoride addition were developed by using a simple two-chamber system. The on-site preparation of TFE was accomplished by dimerization of difluorocarbene derived from (trifluoromethyl)trimethylsilane (TMSCF3) under mild conditions. Other fluoroalkylation reactions
A practical synthesis of aryl tetrafluoroethyl ethers via the improved reaction of phenols with 1,2-dibromotetrafluoroethane
作者:Jianqing Li、Jennifer X. Qiao、Daniel Smith、Bang-Chi Chen、Mark E. Salvati、Jacques Y. Roberge、Balu N. Balasubramanian
DOI:10.1016/j.tetlet.2007.08.065
日期:2007.10
An efficient and practical synthesis of various aryl tetrafluoroethyl ethers by the reaction of phenols with 1,2-dibromotetrafluoroethane and the subsequent reduction with zinc dust was described. The nucleophilic substitution of 1,2-dibromotetrafluoroethane with phenols initiated by bromophilic attack was improved by using Cs2CO3 as a base and DMSO as a solvent.
描述了通过苯酚与1,2-二溴四氟乙烷反应并随后用锌粉还原而有效和实用地合成各种芳基四氟乙基醚的方法。通过使用Cs 2 CO 3作为碱和DMSO作为溶剂,改善了由亲油性攻击引发的苯酚对1,2-二溴四氟乙烷的亲核取代。
METHOD FOR THE APPLICATION OF ACTIVE MATERIALS ONTO A SURFACES AND DEVICES MADE WITH SUCH METHODS
申请人:PETROV VIACHESLAV A.
公开号:US20110180761A1
公开(公告)日:2011-07-28
The invention provides methods for the application of active materials onto active surfaces useful in organic electronic devices. The methods of the invention include selecting a liquid composition including an active material and a suitable liquid medium whereby when the liquid composition is deposited on the desired active surface it has no greater than about a 40° contact angle; treating the active surface to raise its surface tension before the deposition of a liquid composition containing the desired active material is deposited thereon; and combination thereof. The invention also provides organic electronic devices having at least two active layers, wherein at least one active layer comprises an active material that was deposited using at least one practice of the method of the invention.