Results 301 to 310 of about 176,899 (357)

Red‐Light‐Mediated Generation of Radicals: Applications in Organic Synthesis, Small‐Molecule Activation, Polymerization, and Bio‐Related Fields

Angewandte Chemie International Edition, Accepted Article.
The field of visible light‐mediated photochemistry has experienced significant growth, leading to the development of a wide array of methodologies in synthetic organic chemistry. In particular, photocatalysis by using long‐wavelength light such as red and near‐infrared (NIR) light has garnered substantial attention recently.
Tong Zhang, Suman Pradhan, Shoubhik Das
wiley   +1 more source

Expression of concern: Effectiveness of some novel heterocyclic compounds as corrosion inhibitors for carbon steel in 1 M HCl using practical and theoretical methods. [PDF]

RSC Adv
Fouda AES, Abd El-Maksoud SA, El-Sayed EH, Elbaz HA, Abousalem AS.   +4 more
europepmc   +1 more source

Density functional theory investigation of the contributions of π-π stacking and hydrogen bonding with water to the supramolecular aggregation interactions of model asphaltene heterocyclic compounds. [PDF]

J Mol Model
Lessa MD, Stoyanov SR, de Carneiro JWM, da Costa LM.   +3 more
europepmc   +1 more source

Heterocyclic compounds derived from catechol ethers. Part IV. Synthesis of some dimethoxybenzacridines

, 1938
Francis Lions, Gordon Kingsley Hughes, Thomas A. Wilkinson   +2 more
openalex   +2 more sources

Syntheses of Heterocyclic Compounds of Nitrogen. LXXI

, 1952
Torizo Takahashi, Kenzo Satake
openalex   +2 more sources

A Platform for the Development of Highly Red‐Shifted Azobenzene‐based Optical Tools

Angewandte Chemie International Edition, Accepted Article.
Azobenzenes are versatile photoswitches that can be used to generate elaborate optical tools including photopharmaceuticals. However, the targeted application‐guided design of new photoswitches with specific properties remains challenging. We have developed synthetic protocols for derivatives of the dfdc (di‐ortho‐fluoro‐di‐ortho‐chloro) azobenzene ...
Kyra Lützel, Henryk Laqua, Manjima B. Sathian, Benedikt Nißl, Judit Katalin Szántó, Christina-Anna Senser, Gökcen Savasci, Lars Allmendinger, Bilal Kicin, Vincent Ruf, Dominik Kammerer, Theobald Lohmüller, Konstantin Karaghiosoff, Ahmed M. Ali, Ursula Storch, Michael Mederos y Schnitzler, Christian Ochsenfeld, David Konrad   +17 more
wiley   +1 more source

The Flexibility of Tetra(N‐Heterocyclic Carbene) Ligands Controls the Nuclearity and Geometry of Polynuclear MI‒NHC Assemblies

Angewandte Chemie International Edition, EarlyView.
Tetracarbene ligands composed of two di(phenylimidazol‐2‐ylidene)amine groups linked by an anthracene bridge exhibit restricted rotation of the Cphenyl─N─Cphenyl plane relative to the anthracene moiety if the N(Ph─NHC)2 moieties are directly attached to anthracene.
Guang‐Feng Jin, Fang Wang, F. Ekkehardt Hahn, Ying‐Feng Han   +3 more
wiley   +1 more source

Studies on Sulfur-containing Heterocyclic Compounds. V. On 3-Amino-Rhodanine Derivatives

, 1956
上田 寛幹, 大田 正樹
openalex   +2 more sources

Coordinative Ring‐Opening Polymerization of Limonene Carbamate towards Phosgene‐ and Isocyanate‐Free Polyurethane

Angewandte Chemie International Edition, Accepted Article.
This study presents a phosgene‐ and isocyanate‐free route for the synthesis of polyurethanes using (R)‐limonene as a bio‐based starting material. The synthesis of the cyclic limonene‐based carbamate monomer LU is achieved in high yields using dimethyl carbonate as a sustainable, less hazardous phosgene surrogate and is verified by NMR, SC‐XRD, ESI‐MS ...
Jonas Futter, Leon Ferdinand Richter, Stefanie Hörl, Bernhard Rieger, Moritz Kränzlein   +4 more
wiley   +1 more source

Photocatalytic Hydrogenation of Quinolines to Form 1,2,3,4‐Tetrahdyroquinolines Using Water as the Hydrogen Atom Donor

Angewandte Chemie International Edition, EarlyView.
A sequential process combining hydrogenation and a subsequent stereomutation is presented for trans selective hydrogenation of quinolines using water as the hydrogen atom source. Mechanistic studies reveal that the hydrogenation proceeds through a cascade process comprising an initial cis selective photocatalytic hydrogenation of the heteroarene core ...
Jingjing Zhang, Nico Spreckelmeyer, Jessika Lammert, Maxim‐Aleksa Wiethoff, Matthew James Milner, Christian Mück‐Lichtenfeld, Armido Studer   +6 more
wiley   +1 more source