Results 31 to 40 of about 830 (174)

Organic Reactions Promoted by Metal-Free Organic Dyes Under Visible Light Irradiation [PDF]

, 2017
Although dyes have received much attention as the visible light-activated photocatalysts, the use of metal-free organic dyes in synthetic organic chemistry is still limited.
Miyabe, Hideto
core   +2 more sources

Recent Advances in the Use of Covalent Organic Frameworks as Heterogenous Photocatalysts in Organic Synthesis [PDF]

, 2023
Organic photochemistry is intensely developed in the 1980s, in which the nature of excited electronic states and the energy and electron transfer processes are thoroughly studied and finally well-understood.
Alemán, José, Daliran, Saba, Dhakshinamoorthy, Amarajothi, López Magano, Alberto, Mas Ballesté, Rubén, Oveisi, Ali Reza   +5 more
core   +4 more sources

Reaction of allene esters with Selectfluor/TMSX (X = I, Br, Cl) and Selectfluor/NH4SCN: Competing oxidative/electrophilic dihalogenation and nucleophilic/conjugate addition

Beilstein Journal of Organic Chemistry, 2015
Reaction of benzyl and ethyl allenoates with TMSX (X = I, Br, Cl) and with NH4SCN were investigated in MeCN, DMF, and in imidazolium ionic liquids [BMIM][NTf2] and [BMIM][PF6] as solvent, in the presence and absence of Selectfluor.
A. Srinivas Reddy, Kenneth K. Laali
doaj   +1 more source

An Efficient and Eco-Friendly Procedure for Electrophilic Thiocyanation of Anilines and 1-(Substituted benzylidene)-2-phenyl Hydrazines

Chemistry
Thiocyanates form an important class of organic compounds commonly found in natural products that exhibit excellent antimicrobial activity. The electrophilic thiocyanation is one of the most effective methods of introducing a -SCN functional group to the
A. M. M. Mallikarjunaswamy, Gouthami Kuruvalli, Khajamohiddin Syed, Vaddi Damodara Reddy, Vipin A. Nair   +4 more
doaj   +1 more source

Rational Design and Synthesis of Large Stokes Shift 2,6-Sulphur-Disubstituted BODIPYs for Cell Imaging [PDF]

, 2022
Five new disubstituted 2,6-thioaryl-BODIPY dyes were synthesized via selective aromatic electrophilic substitution from commercially available thiophenols.
da Silva Junior, Eufranio N, de Simone, Carlos A, de Souza, Marcos C, Geddis, Ailsa, Gouvea, Marcos M, Lochenie, Charles, Machado, Luana A, Marques, Flavia F C, Pedrosa, Leandro F, Reese, Abigail E, Vendrell, Marc   +10 more
core   +2 more sources

Synthesis and Photophysical Studies of Nitrogen Heterocycles Containing Benzothiazines, Benzothiazoles, Indoles and Quinolines [PDF]

, 2021
Nitrogen heterocycles such as quinolines, benzothiazines, benzothiazoles, and indoles are widely found in nature and these compounds have significance in organic and medicinal chemistry, biochemistry as well as materials science.
Patel, Ealin N
core   +1 more source

Regioselective Thiocyanation of Aromatic and Heteroaromatic Compounds by Using Boron Sulfonic Acid as a New, Efficient, and Cheap Catalyst in Water

Journal of Chemistry, 2013
Highly efficient regioselective thiocyanations of indoles and N,N-disubstituted anilines are achieved via a green and simple protocol using boron sulfonic acid (BSA) as a new catalyst and KSCN/H2O2 as a mild and environmentally friendly oxidant in ...
Sami Sajjadifar, Omid Louie
doaj   +1 more source

TXCA‐Mediated Synthesis of Halogenated 4‐Aminocoumarins Derivatives Under Mild Conditions and In Silico Evaluation Against Alzheimer's Disease‐Related Protein Targets

ChemistrySelect, Volume 11, Issue 16, 27 April 2026.
A green and sustainable protocol for the halogenation of 4‐aminocoumarins using trihaloisocyanuric acids was developed, affording compounds with the predicted potential to inhibit protein targets associated with Alzheimer's disease. ABSTRACT A highly efficient and selective protocol for the halogenation of the C─H bond of 4‐aminocoumarin derivatives is
Maryelle A. G. de Carvalho, Vinicius C. Alves, Lara M. Flores, Carlos V. Doerner, Tácia K. Hall, Cristiani F. Bortolatto, Louis P. Sandjo, José S. S. Neto, Antonio L. Braga, Francisco F. de Assis   +9 more
wiley   +1 more source

Studies on Affinity and Reactivity of Chalcogen Atoms toward Transition Metals Directed to the Development of Stabilizing Reagents of Harmful Heavy Metals [PDF]

, 2010
Thesis学位授与大学: Osaka Prefecture University(大阪府立大学), 学位の種類: 博士(工学), 学位記番号: 論工第1271号, 学位授与年月日: 2011-03-31, 指導教員: 小川昭弥.大阪府立大学, 2010, 博士論文 ...
尾崎, 紀哉
core   +1 more source

Access to Isothiazolones from Simple Acrylamides by Pd-Catalyzed C–H Bond Activation [PDF]

, 2019
International ...
Besset, Tatiana, Chen, Mu-Yi, Jubault, Philippe, Pannecoucke, Xavier   +3 more
core   +2 more sources