Results 11 to 20 of about 5,308 (247)

]thiophenes

, 2014
The chemoselective synthesis of indeno[1,2-b]thiophenes was developed through the annulation of α-enolic dithioesters with ninhydrin under solvent-free conditions.
Ganesh Chandra Nandi, Maya Shankar Singh, Koley, Suvajit, Chowdhury, Sushobhan, Ramulu, B. Janaki, Suvajit Koley, Sushobhan Chowdhury, B. Janaki Ramulu, Tanmoy Chanda, Chanda, Tanmoy, Nandi, Ganesh Chandra, Singh, Maya Shankar   +11 more
core   +2 more sources

Straightfoward synthesis of 2-acetyl-substituted benzo[b]thiophenes

, 2013
International audienceDescribed herein is a green one-step protocol for the preparation of substituted 2-acetylbenzo[b]thiophenes from commercially available aromatic halides. This efficient method has the advantage of using water as the reaction medium,
Lemaire, Marc, Popowycz, Florence, Debray, Julien   +2 more
core   +4 more sources

ON THE PREPARATION OF THIOPHENE. [PDF]

Journal of the American Chemical Society, 1890
n ...
openaire   +2 more sources

S,O-Ligand-Promoted Pd-Catalyzed C-H Olefination of Thiophenes [PDF]

, 2019
SO good. An efficient PdII catalyzed C−H olefination of thiophenes has been developed using an easily accessible bidentate S,O‐ligand. The catalytic system promotes the C‐2 olefination in a wide range of thiophenes including 3‐substituted thiophenes ...
Álvarez‐Casao, Y., Fernández‐Ibáñez, M.A.   +1 more
core   +1 more source

Palladium-catalyzed 2,5-diheteroarylation of 2,5-dibromothiophene derivatives

Beilstein Journal of Organic Chemistry, 2014
Conditions allowing the one pot 2,5-diheteroarylation of 2,5-dibromothiophene derivatives in the presence of palladium catalysts are reported.
Fatma Belkessam, Aidene Mohand, Jean-François Soulé, Abdelhamid Elias, Henri Doucet   +4 more
doaj   +1 more source

Inhibition of human cytochromes P450 2A6 and 2A13 by flavonoids, acetylenic thiophenes and sesquiterpene lactones from Pluchea indica and Vernonia cinerea

Journal of Enzyme Inhibition and Medicinal Chemistry, 2017
The human liver cytochrome P450 (CYP) 2A6 and the respiratory CYP2A13 enzymes play role in nicotine metabolism and activation of tobacco-specific nitrosamine carcinogens.
Supattra Boonruang, Khanistha Prakobsri, Phisit Pouyfung, Ekaruth Srisook, Aruna Prasopthum, Pornpimol Rongnoparut, Songklod Sarapusit   +6 more
doaj   +1 more source

Novel thiophenes and method for polymerization of said thiophenes [PDF]

, 2002
The invention relates to novel thiophenes of formula (I) wherein R and R' are independently - hydrogen, alkyl or alkoxy or together a -O-(CH2)n-O bridge wherein n = 1 to 5.
Vekemans, J.A.J.M., Meijer, E.W., Mullekom, van, H.A.M., Groenendaal, L.   +3 more
core   +1 more source

Application of Flow Thermolysis in Organic Synthesis: Easy Access to α,ω-Bis Thienyl- and Bis Pyrrolyl- Alkanes from Methylene Derivatives of Meldrum's Acid

Molecules, 2000
Thermal decomposition of Meldrum's acid derivatives and rearrangement of (alkylsulfanyl) or (propargylamino)methylene ketene intermediates leads in one step to bis thienyl- or bis pyrrolyl-alkanes.
Hamid Dhimane, Fanck Jourdain, Jean Claude Pommelet   +2 more
doaj   +1 more source

Some Natural Photosensitizers and Their Medicinal Properties for Use in Photodynamic Therapy

Molecules, 2022
Despite significant advances in early diagnosis and treatment, cancer is one of the leading causes of death. Photodynamic therapy (PDT) is a therapy for the treatment of many diseases, including cancer.
Tomasz Piotr Kubrak, Przemysław Kołodziej, Jan Sawicki, Anna Mazur, Katarzyna Koziorowska, David Aebisher   +5 more
doaj   +1 more source

Microwave-Assisted Synthesis of some Novel Azoles and Azolopyrimidines as Antimicrobial Agents

Molecules, 2017
In this study, new derivatives of pyrazole, isoxazole, pyrazolylthiazole, and azolopyrimidine having a thiophene ring were synthesized under microwave irradiation.
Sobhi M. Gomha, Thoraya A. Farghaly, Yahia Nasser Mabkhot, Mohie E. M. Zayed, Amany M. G. Mohamed   +4 more
doaj   +1 more source