通过水性不可逆联苯胺的分子工程,获得了一系列具有可控高氧化还原电位(0.78-1.01 V vs. SHE)的水溶性阴极电解液候选物。基于N,N,N',N'-四乙基联苯胺与H 4 [Si(W 3 O 10 ) 4 ]阳极电解液配对的令人印象深刻的电池性能表明联苯胺衍生物可能是用于水性有机液流电池的有前途的阴极电解液材料。
Macrolactones and crown ethers derived from biphenyl. Electronic and steric influence of substituents on its complexation ability
作者:Ana M. Costero、C. Andreu、M. Pitarch、R. Andreu
DOI:10.1016/0040-4020(96)00044-0
日期:1996.3
Electronic effects as well as steric hindrance must be considered in order to compare the ability of macrolactones and crownethers for complexing alkali cations and Hg(SCN)2.
为了比较大内酯和冠醚络合碱金属阳离子和Hg(SCN)2的能力,必须考虑电子效应以及位阻。
PHOTOPOLYMERIZABLE COMPOSITIONS FEATURING NOVEL AMINE ACCELERATOR FOR IMPROVED COLOR STABILITY AND REDUCED POLYMERIZATION STRESS THEREBY
申请人:DENTSPLY SIRONA INC.
公开号:US20160228334A1
公开(公告)日:2016-08-11
A photopolymerization accelerator composition improving color stability and controlling polymerization shrinkage stress of cured resin and/or the resulting composite paste thereby feature by tertiary twisted biphenyldiamine with the general formula I:
R2 and R3 are each independently alkyl having from 1 to 5 carbon atoms; R and R1 are each independently hydrogen or halogen; alkyl, alkoxy, or alkylthio having from 1 to 18 carbon atoms; or phenyl and/or substituted phenyl alkoxy, or alkylthio having from 1 to 18 carbon atoms. It can be used in part with conventional photosensitizers and radically polymerizable monomers.
The iron(III)-promoted free radical oxidation of anilines has been further developed. Anilines including those bearing strong electron-withdrawing groups on benzene ring were readily converted into corresponding self-coupling benzidines. With addition of base, the methyl on nitrogen was activated and the free radical oxidations tended to furnish the corresponding self-bridged assembling diaminodiarylmethanes. (C) 2015 Elsevier Ltd. All rights reserved.
US9522967B2
申请人:——
公开号:US9522967B2
公开(公告)日:2016-12-20
Catalytic and Aerobic Oxidative Biaryl Coupling of Anilines Using a Recyclable Heterogeneous Catalyst for Synthesis of Benzidines and Bicarbazoles
作者:Kenji Matsumoto、Yasunori Toubaru、Shohei Tachikawa、Ayaka Miki、Kentaro Sakai、Syota Koroki、Tsukasa Hirokane、Mitsuru Shindo、Masahiro Yoshida
DOI:10.1021/acs.joc.0c02020
日期:2020.12.4
rhodium-catalyzed oxidative homocoupling reaction of anilines utilizing molecular oxygen as the sole oxidant is reported. Employing a commercially available and recyclable Rh/C catalyst enabled the oxidative dimerization of various anilines, including N,N-disubstituted and N-monosubstituted anilines, as well as diarylamines, triarylamines, and carbazoles. Additionally, the catalytic protocol was extended