Highly efficient anion transport mediated by 1,3-bis(benzimidazol-2-yl)benzene derivatives bearing electron-withdrawing substituents

2016 ◽  
Vol 14 (35) ◽  
pp. 8232-8236 ◽  
Author(s):  
Chen-Chen Peng ◽  
Meng-Jia Zhang ◽  
Xiao-Xiao Sun ◽  
Xiong-Jie Cai ◽  
Yun Chen ◽  
...  
Keyword(s):  
Anion Transport ◽  
Benzene Derivatives ◽  
Strong Electron ◽  
Highly Efficient ◽  
Electron Withdrawing Substituents

1,3-Bis(benzimidazol-2-yl)benzene derivatives bearing strong electron-withdrawing substituents were found to exhibit highly efficient anion transport.

Highly efficient new indoline dye having strong electron-withdrawing group for zinc oxide dye-sensitized solar cell

Tetrahedron ◽  
2011 ◽  
Vol 67 (34) ◽  
pp. 6289-6293 ◽  
Author(s):  
Shinji Higashijima ◽  
Hidetoshi Miura ◽  
Tomoki Fujita ◽  
Yasuhiro Kubota ◽  
Kazumasa Funabiki ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Solar Cell ◽  
Dye Sensitized Solar Cell ◽  
Strong Electron ◽  
Dye Sensitized ◽  
Highly Efficient ◽  
Electron Withdrawing Group

Asymmetric Hydrocyanation of a Range of Aromatic and Aliphatic Aldehydes

1988 ◽  
Vol 41 (11) ◽  
pp. 1697 ◽  
Author(s):  
BR Matthews ◽  
WR Jackson ◽  
GS Jayatilake ◽  
C Wilshire ◽  
HA Jacobs
Keyword(s):  
Hydrogen Cyanide ◽  
Enantiomeric Excess ◽  
Basic Catalyst ◽  
Strong Electron ◽  
Aliphatic Aldehydes ◽  
Aryl Aldehydes ◽  
Heterocyclic Aldehydes ◽  
Electron Withdrawing Substituents

A range of aryl, alkyl and heterocyclic aldehydes have been treated with hydrogen cyanide in the presence of the 'Inoue' catalyst, (R,R)- or (S,S)-cyclo [phenylalanylhistidyl]. Most aryl aldehydes with electron-donating substituents in the m- or p-positions give high enantiomeric excess (e.e.) values (≥80%) but aryl aldehydes with strong electron-withdrawing substituents gave moderate e.e. values (≤50%). These moderate values are believed to be due to partial racemization of the product cyanohydrins in the presence of the mildly basic catalyst. In contrast to the reactions of aryl aldehydes , reactions of alkyl aldehydes and of ketones gave low e.e. values (≤30%) and an explanation is proposed.

Highly para-selective C‒H alkylation of unactivated arenes with α-aryl-α-diazoesters catalyzed by gold(I) immobilized on MCM-41

2019 ◽  
Vol 44 (3-4) ◽  
pp. 174-180 ◽  
Author(s):  
Yingying Du ◽  
Fang Yao ◽  
Mingzhong Cai
Keyword(s):  
Recyclable Catalyst ◽  
Benzene Derivatives ◽  
Mild Conditions ◽  
Alkylation Of Benzene ◽  
Mcm 41 ◽  
Electron Withdrawing Substituents

The heterogeneous gold(I)-catalyzed highly para-selective C(sp2)–H bond alkylation of benzene derivatives with α-aryl-α-diazoesters possessing electron-withdrawing substituents on the aryl rings are achieved. The reactions proceed under mild conditions in good to excellent yields by using an MCM-41-anchored diphenylphosphine gold(I) complex [MCM-41-PPh2-AuOTf] as a recyclable catalyst.

Thiophene-Fused Benzothiadiazole: A Strong Electron-Acceptor Unit to Build D–A Copolymer for Highly Efficient Polymer Solar Cells

2014 ◽  
Vol 26 (11) ◽  
pp. 3495-3501 ◽  
Author(s):  
Pengcheng Zhou ◽  
Zhi-Guo Zhang ◽  
Yongfang Li ◽  
Xingguo Chen ◽  
Jingui Qin
Keyword(s):  
Solar Cells ◽  
Electron Acceptor ◽  
Polymer Solar Cells ◽  
Strong Electron ◽  
Highly Efficient

Highly efficient new indoline dye having strong electron-withdrawing group for zinc oxide dye-sensitized solar cell [Tetrahedron 67 (34) (2011) 6289–6293]

Tetrahedron ◽  
2011 ◽  
Vol 67 (43) ◽  
pp. 8421 ◽  
Author(s):  
Shinji Higashijima ◽  
Hidetoshi Miura ◽  
Tomoki Fujita ◽  
Yasuhiro Kubota ◽  
Kazumasa Funabiki ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Solar Cell ◽  
Dye Sensitized Solar Cell ◽  
Strong Electron ◽  
Dye Sensitized ◽  
Highly Efficient ◽  
Electron Withdrawing Group

Ester Substituted Thiophene-Fused Benzothiadiazole as a Strong Electron-Acceptor to Build D-A Red-emitters for Highly Efficient Solution-processed OLEDs

2021 ◽  
Author(s):  
Xiaoxiao Wang ◽  
Cheng Zhong ◽  
Guohua Xie ◽  
Xingguo Chen
Keyword(s):  
Electron Acceptor ◽  
Efficient Solution ◽  
Molecular Design ◽  
Strong Electron ◽  
Solution Processed ◽  
Highly Efficient ◽  
Donor Acceptor ◽  
Rational Molecular Design

Rational molecular design is critical to build high-efficiently red-NIR fluorescent emitters. In this work, a thiophene-fused benzothiadiazole (BTT) unit has been chosen as a strong electron-acceptor to build donor-acceptor (D-A)...

Antioxidant properties of ethenyl indole: DPPH assay and TDDFT studies

2020 ◽  
Vol 44 (21) ◽  
pp. 8960-8970 ◽  
Author(s):  
Jagdeep Kumar ◽  
Naresh Kumar ◽  
Nitin Sati ◽  
Prasanta Kumar Hota
Keyword(s):  
Antioxidant Activity ◽  
Vitamin E ◽  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Dependent Manner ◽  
Dpph Assay ◽  
Strong Electron ◽  
Electron Withdrawing Substituents

Ethenyl indole exhibits antioxidant activity in a substituent dependent manner. Ethenyls bearing strong electron withdrawing substituents show weak or no antioxidant activities, whereas ethenyls with electron donating substituents exhibit antioxidant properties comparable to vitamin E.

Calix[4]arenes containing a ureido functionality on the lower rim as highly efficient receptors for anion recognition

2016 ◽  
Vol 40 (9) ◽  
pp. 7935-7942 ◽  
Author(s):  
Tomáš Klejch ◽  
Jan Slavíček ◽  
Oldřich Hudeček ◽  
Václav Eigner ◽  
Natalia Andrea Gutierrez ◽  
...  
Keyword(s):  
Anion Recognition ◽  
Highly Efficient ◽  
Electron Withdrawing Substituents

Calix[4]arenes bearing diaryl urea moieties with electron-withdrawing substituents on both sides can bind selected anions (AcO−, BzO−, H2PO4−) even in highly competitive solvents such as DMSO-d6.

Tuning the physical properties of pyrrolo[3,4-c]pyrrole-1,3-dione-based highly efficient large band gap polymers via the chemical modification on the polymer backbone for polymer solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (120) ◽  
pp. 99217-99227 ◽  
Author(s):  
Vellaiappillai Tamilavan ◽  
Dal Yong Lee ◽  
Rajalingam Agneeswari ◽  
Shinuk Cho ◽  
Youngeup Jin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Chemical Modification ◽  
Physical Properties ◽  
Band Gap ◽  
Polymer Solar Cells ◽  
High Energy ◽  
Strong Electron ◽  
Polymer Backbone ◽  
Highly Efficient ◽  
Energy Converting

The property modulation of DPPD-based high energy converting large band gap polymer (PBDT–DPPD) was studied via the incorporation of strong electron accepting TPD, TT or DPP units on the polymer backbone.

The Synthesis of Fluorescent DNA Intercalator Precursors through Efficient Multiple Heck Reactions

2011 ◽  
Vol 64 (3) ◽  
pp. 316 ◽  
Author(s):  
Nigel A. Lengkeek ◽  
Ramiz A. Boulos ◽  
Allan J. McKinley ◽  
Thomas V. Riley ◽  
Boris Martinac ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Benzene Derivatives ◽  
Efficient Synthesis ◽  
Heck Reactions ◽  
Dna Intercalator ◽  
Highly Efficient ◽  
Cross Coupling Reaction ◽  
Efficient Route

A highly efficient synthesis of p-carboethoxy-tristyryl and carboethoxy-terastyrenyl benzene derivatives through a multiple Heck cross coupling reaction is reported. This reaction provides an efficient route to DNA intercalator precursors containing a benzene core.

Sign in / Sign up

Export Citation Format

Share Document