Results 121 to 130 of about 86,786 (280)

The 1:1 proton-transfer compounds of 4-(phenyldiazenyl)aniline (aniline yellow) with 3-nitrophthalic, 4-nitrophthalic and 5-nitroisophthalic acids [PDF]

, 2008
The structures of the anhydrous 1:1 proton-transfer compounds of the dye precursor aniline yellow [4-(phenyl-diazenyl)-aniline], namely isomeric 4-(phenyl-diazenyl)-anilin-ium 2-carb-oxy-6-nitro-benzoate, C12H12N3 +·C8H4NO6 -, (I), and 4-(phenyl-diazenyl)
Young, David J, Smith, Graham, Wermuth, Urs D., Wermuth, Urs, Wermuth, U D, Young, David J., Young, David James, M. White, Jonathan, White, Jonathan M, Wermuth, Urs D, Smith, G, White, Jonathan M., Young, David, White, J M   +13 more
core   +1 more source

Water, Alcohols, Amines, and Amides as Formal Hydrogen‐Atom‐Transfer Reagents Through Activation With Redox‐Active Lewis Acids

Angewandte Chemie, EarlyView.
Protic molecules containing strong O─H or N─H bonds typically resist hydrogen‐atom abstraction because of the high reactivity of the resulting heteroatom‐centered radicals. However, association of the protic molecules with redox‐active Lewis acids can provide powerful hydrogen‐atom donors or proton‐coupled‐electron‐transfer reagents.
Petra Vojáčková, Armido Studer
wiley   +2 more sources

Poly(aniline boronic acid):  A New Precursor to Substituted Poly(aniline)s

, 2016
A novel strategy for preparing a wide range of substituted poly(aniline)s from a single precursor is described. This approach relies on a boron activation/electrophilic displacement reaction resulting in ipso-substitution.
Michael S. Freund (1276242), Eiichi Shoji (2984322)   +1 more
core   +1 more source

Sustainable Access to N‐Heterocycles: One‐Pot Cascade Synthesis of Pyrroles From Bio‐Derived Furans

Angewandte Chemie, EarlyView.
Highly dispersed platinum (Pt) clusters on Brønsted acid‐rich HY zeolite enable a one‐pot cascade conversion of bio‐derived furans and nitroarenes into pyrroles. Highly dispersed Pt sites ensure selective nitro hydrogenation, while Pt nanoparticles promote undesired over‐hydrogenation.
Haifeng Qi, Germán López Robledo, Jianglin Duan, Yujing Ren, Kathrin Junge, Matthias Beller   +5 more
wiley   +2 more sources

Poly(aniline boronic acid): A New Precursor to Substituted Poly(aniline)s [PDF]

, 2001
A novel strategy for preparing a wide range of substituted poly(aniline)s from a single precursor is described. This approach relies on a boron activation/electrophilic displacement reaction resulting in ipso-substitution.
Shoji, Eiichi, Freund, Michael S.
core  

Covalent Organic Framework Colloids With Core‐Shell Donor/Acceptor Architecture and Ultralong‐Lived Charge‐Separated States

Angewandte Chemie, EarlyView.
Uniform core‐shell colloidal particles of Covalent Organic Frameworks (COFs) are synthesized by a seeded growth of electron‐acceptor COF shells on electron‐donor COF cores. The resulting p‐n heterojunction enables efficient separation of photogenerated charges, which persist for minutes. These core‐shell COFs show efficient CO2 photoreduction to CO and
Ting Yu, Cory Ruchlin, Tong Li, Mohammad Hossein Gohari, Zhechang He, Zeina Chamseddine, Chang Wan Kang, Dongling Ma, Dmytro F. Perepichka   +8 more
wiley   +2 more sources

Lichtgesteuerte Dosierung der PPARγ‐Aktivierung Mittels Schnell Relaxierender Photoschalter

Angewandte Chemie, EarlyView.
Um eine räumlich‐zeitliche Kontrolle der PPARγ‐Aktivität zu ermöglichen, entwickelten wir den schnell relaxierenden photoschaltbaren Agonisten 6, der PPARγ selektiv in seinem lichtinduzierten Z‐Zustand aktiviert und innerhalb von Sekunden (t1/2 = 47 s) in den inaktiven E‐Zustand relaxiert.
Loris Knümann, Alba Rodriguez‐Paniagua, Martin Reynders, Silke Duensing‐Kropp, Oliver Thorn‐Seshold, Vasily Morozov, Julian A. Marschner, Daniel Merk   +7 more
wiley   +1 more source

Nitro Reduction‐Based RNA Control and Ultrafast Release

Angewandte Chemie, EarlyView.
A chemical RNA caging–uncaging strategy based on nitro reduction is described. Nitroaryl groups introduced via acylation temporarily block the functions of diverse RNAs in vitro and in living cells. Treatment with a diboronic acid–bipyridine mixture rapidly reduces the nitro groups, releasing RNAs and restoring their activity.
Yiran Zhao, Senfeng Zhang, Junsong Guo, Tuan‐Khoa Kha, Song Chen, Chunyi Hu, Ru‐Yi Zhu   +6 more
wiley   +2 more sources

Chemical polymerization of aniline in phenylphosphinic acid [PDF]

Journal of the Serbian Chemical Society, 2005
The chemical polymerization of aniline was performed in phenylphosphinic acid (APP) medium using ammonium peroxidisulfate as the oxidizing agent, at 0 ºC and 25 ºC. The yield of polyaniline (PANI) was about 60–69 %. The polymerization process required an
NICOLETA PLESU, GHEORGHE ILIA, GEZA BANDUR, SIMONA POPA   +3 more
doaj  

Aniline - ToxFAQs : CAS # 62-53-3

This fact sheet answers the most frequently asked health questions about aniline. For more information, you may call the ATSDR Information Center at 1-888-422-8737.

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