Results 81 to 90 of about 5,308 (247)

Integrated Extraction Optimization and HPLC‐based Quality Evaluation of Thiophenes from Tagetes erecta Roots

Analytical Science Advances
Tagetes erecta L. is widely studied for its flower‐derived lutein, which is known for promoting eye health. However, its roots contain uniquely thiophenes—absent from the flowers and leaves—which exhibit valuable bioactivity.
Shuo Tian, Sainan Li, Jisu Park, Jong‐Sup Bae, MinKyun Na   +4 more
doaj   +1 more source

Hindered aryl bromides for regioselective palladium-catalysed direct arylation at less favourable C5-carbon of 3-substituted thiophenes

Beilstein Journal of Organic Chemistry, 2014
The use of the congested aryl bromide 2-bromo-1,3-dichlorobenzene as coupling partner allows to modify the regioselectivity of the arylation of 3-substituted thiophene derivatives in favour of carbon C5.
Rongwei Jin, Charles Beromeo Bheeter, Henri Doucet   +2 more
doaj   +1 more source

Convenient synthesis of 3,4-bis(alkylthio) thiophenes

, 1998
A variety of sym. substituted 3,4-dithio ether thiophenes were prepd.
Goldoni, F.F., Meijer, E.W., Langeveld-Voss, B.M.W.   +2 more
core   +1 more source

The metabolism of thiophen and benzo(b)thiophen [PDF]

Biochemical Journal, 1968
H G, Bray, F M, Carpanini
openaire   +2 more sources

Dual Nickel/Photoredox‐Catalyzed Regio‐ and Enantioselective Alkenylation of Epoxides

Advanced Science, EarlyView.
Ni/photoredox‐catalyzed stereoconvergent cross‐electrophile coupling of racemic epoxides with alkenyl bromides is described, affording β‐alkenyl products with up to 95% ee, excellent E‐selectivity, and complete regiocontrol. These versatile intermediates enable diverse chiral synthons; mechanistic studies suggest a halide ring‐opening followed by ...
Hongyan Lan, Shengzhou Jin, Zhao‐Dong Xu, Guigen Li, Dingyi Wang   +4 more
wiley   +1 more source

Rh(II)-mediated domino [4 + 1]-annulation of α-cyanothioacetamides using diazoesters: A new entry for the synthesis of multisubstituted thiophenes

Beilstein Journal of Organic Chemistry, 2017
A new approach towards the synthesis of multisubstituted thiophenes is elaborated based on Rh(II)-catalyzed domino reactions of acyclic diazoesters with α-cyanothioacetamides.
Jury J. Medvedev, Ilya V. Efimov, Yuri M. Shafran, Vitaliy V. Suslonov, Vasiliy A. Bakulev, Valerij A. Nikolaev   +5 more
doaj   +1 more source

One-Pot Synthesis of Functionalized Benzo[b]thiophenes and Their Hetero-Fused Analogues via Intramolecular Copper-Catalyzed S‑Arylation of In Situ Generated Enethiolates

, 2016
An efficient one-pot synthesis of highly functionalized multisubstituted benzo­[b]­thiophenes and their hetero-fused analogues, such as thieno­[2,3-b]­thiophenes, indolo­[2,3-b]­thiophenes, and pyrazolo­[3,2-c]­thiophenes, has been reported.
Anand Acharya (1643092), H. Ila (1643089), S. Vijay Kumar (1643095), B. Saraiah (1643098)   +3 more
core   +1 more source

Potential of Nanoparticle‐Based Phototherapies for Future Treatment of Uveal Melanoma

Advanced Science, EarlyView.
This review evaluates nanoparticle‐based phototherapies for uveal melanoma, highlighting emerging strategies to enhance tumor targeting, light delivery, and treatment precision. Preclinical data indicate improved efficacy and reduced toxicity, supporting their potential to enhance localized treatment and future translational advances. (Generated by the
Emilie Lambert, Christophe Nguyen, Sean Edward Dunn, Magali Gary‐Bobo, Jérôme Lacombe, Justin Moser, Frédéric Zenhausern, Jean‐Olivier Durand, Frédérique Cunin   +8 more
wiley   +1 more source

Ion‐Exchange‐Driven Ternary Organic Neuromorphic Devices with High Efficiency and Stability

Advanced Science, EarlyView.
Spontaneous ion exchange in a ternary polymer–ionic liquid blend disrupts the phase‐separated ionic domains of the binary film and creates a more homogeneous polymer–ion environment. This ionically reorganized matrix enables stable and efficient electrochemical doping, leading to ion‐gel‐gated organic electrochemical transistors with enhanced ...
Sungmin Lee, Vivek Pratap Singh, Hyeonryul Lee, Young‐Yong Kim, Yong‐Ryun Jo, Changhoon Lee, Ji Hoon Shim, Namsoo Lim, Guanjie Wang, Junyeong Sung, Dongyeop Yang, Zhongwu Wang, Liqiang Li, Chandran Balamurugan, Sooncheol Kwon   +14 more
wiley   +1 more source

Synthesis of Novel Derivatives of Carbazole-Thiophene, Their Electronic Properties, and Computational Studies

Journal of Chemistry, 2016
A series of carbazole-thiophene dimers, P1–P9, were synthesized using Suzuki-Miyaura and Ullmann coupling reactions. In P1–P9, carbazole-thiophenes were linked at the N-9 position for different core groups via biphenyl, dimethylbiphenyl, and phenyl ...
E. F. Damit, N. Nordin, A. Ariffin, K. Sulaiman   +3 more
doaj   +1 more source