Results 111 to 120 of about 41,075 (284)

Aminofluorination of 2-alkynylanilines: a Au-catalyzed entry to fluorinated indoles

Beilstein Journal of Organic Chemistry, 2014
The scope and limitations of gold-catalyzed tandem cycloisomerization/fluorination reactions of unprotected 2-alkynylanilines to have access to 3,3-difluoro-2-aryl-3H-indoles and 3-fluoro-2-arylindoles are described.
Antonio Arcadi, Emanuela Pietropaolo, Antonello Alvino, Véronique Michelet   +3 more
doaj   +1 more source

Beyond Molecular Determinism: State‐Convergent Polymerization as a Functional Design Principle Under Chemical Complexity

Advanced Science, EarlyView.
This work introduces state‐convergent polymerization (SCP), a polymerization framework in which chemically diverse reaction pathways converge toward a reproducible functional polymeric state rather than a defined molecular structure. Using melanin and polydopamine as exemplars, SCP explains how robust polymer functions emerge under chemical and ...
Seonki Hong
wiley   +1 more source

Enantioselective Synthesis of Axially Chiral Diaryl Ethers via Rhodium‐Catalyzed [2 + 2 + 2] Cycloaddition

Angewandte Chemie, EarlyView.
An enantioselective rhodium‐catalyzed [2 + 2 + 2] cycloaddition enables the synthesis of axially chiral diaryl ethers. Carbonyl coordination ensures high reactivity and regioselectivity, affording products bearing up to four stereogenic axes with good enantio‐ and diastereoselectivity.
Yu Sato, Julong Jiang, Kairi Yamashiro, Ken Tanaka   +3 more
wiley   +2 more sources

Allenylphosphine oxides as simple scaffolds for phosphinoylindoles and phosphinoylisocoumarins

Beilstein Journal of Organic Chemistry, 2014
A range of phosphinoylindoles was prepared in one-pot from functionalized propargyl alcohols and a suitable P(III) precursor via a base-mediated reaction. The reaction proceeds via the intermediacy of allenylphosphine oxides.
G. Gangadhararao, Ramesh Kotikalapudi, M. Nagarjuna Reddy, K. C. Kumara Swamy   +3 more
doaj   +1 more source

Bacterial Production of Indole Related Compounds Reveals Their Role in Association Between Duckweeds and Endophytes

Frontiers in Chemistry, 2018
Duckweed farming can be a sustainable practice for biofuel production, animal feed supplement, and wastewater treatment, although large scale production remains a challenge.
Sarah Gilbert, Jenny Xu, Kenneth Acosta, Alexander Poulev, Sarah Lebeis, Eric Lam   +5 more
doaj   +1 more source

Semi‐Transparent Organic Photodiodes with Near‐Infrared Detection Fabricated by Inkjet Printing

Advanced Electronic Materials, EarlyView.
This work shows the inkjet printing of semi‐transparent and opaque organic photodiodes that enable light detection in the near‐infrared regime. Their transparency and high detection speed make them ideal for applications in soft robotics, wearable devices, and light communication systems.
Luis Arturo Ruiz‐Preciado, Peter Krebsbach, Mervin Seiberlich, Gerardo Hernandez‐Sosa   +3 more
wiley   +1 more source

Catalytic Functionalization of Unactivated π‐Bonds Enabled by Bidentate Directing Auxiliaries

Angewandte Chemie, EarlyView.
This review explores how bidentate directing auxiliaries have advanced transition‐metal catalysis for unactivated alkene/alkyne functionalization. By leveraging chelated intermediates, bidentate directing auxiliaries enable precise hydrofunctionalization, difunctionalization, and C─H activation of π‐bonds with unique selectivity and reactivity.
Seunghyeon Cho, Al Vicente Riano D. Lisboa, Juntao Sun, Taeho Kang, Keary M. Engle   +4 more
wiley   +2 more sources

Molecular Design and Interfacial Functions of Self‐Assembled Monolayers for Perovskite and Tandem Solar Cells

Advanced Energy Materials, EarlyView.
We identify two decisive levers for SAM interfaces: molecular design (carboxylic acid‐based, phosphonic acid, other anchoring chemistries, and polymeric SAMs) and mixing routes (co‐assembly, in situ assembly, pre‐ and post‐treatment). Coordinated tuning of headgroups and assembly pathways optimises energy alignment and film formation, suppresses ...
Jiaxu Zhang, Bochun Kang, Feng Yan
wiley   +1 more source

Antiedematogenic activity of the indole derivative N-salicyloyltryptamine in animal models

Anais da Academia Brasileira de Ciências
The N-salicyloyltryptamine (NST) is an indole derivative compound analogue to the alkaloid N-benzoyltryptamine. In the present study, the antiedematogenic activity of NST was investigated in animal models. Firstly, the acute toxicity for NST was assessed
BENEDITO P. SOUSA-NETO, BRUNO S. GOMES, FRANCISCO V.M. CUNHA, DANIEL D.R. ARCANJO, STANLEY J.C. GUTIERREZ, MARIA F.V. SOUZA, FERNANDA R.C. ALMEIDA, FRANCISCO A. OLIVEIRA   +7 more
doaj   +1 more source

Synthesis of 2-substituted tryptophans via a C3- to C2-alkyl migration

Beilstein Journal of Organic Chemistry, 2014
The reaction of 3-substituted indoles with dehydroalanine (Dha) derivatives under Lewis acid-mediated conditions has been investigated. The formation of 2-substituted tryptophans is proposed to occur through a selective alkylative dearomatization ...
Michele Mari, Simone Lucarini, Francesca Bartoccini, Giovanni Piersanti, Gilberto Spadoni   +4 more
doaj   +1 more source