Results 21 to 30 of about 33,950 (227)

Synthesis of the Isodityrosine Moiety of Seongsanamide A–D and Its Derivatives

Marine Drugs, 2023
The concise and highly convergent synthesis of the isodityrosine unit of seongsanamide A–D and its derivatives bearing a diaryl ether moiety is described.
Yang Xie, Zhou Xu, Pei Hu, Xiao-Ting Tian, Yi-Hong Lu, Hao-Dong Jiang, Cheng-Gang Huang, Zhi-Cai Shang   +7 more
doaj   +1 more source

Synthesis of novel room temperature chiral ionic liquids. application as reaction media for the heck arylation of aza-endocyclic acrylates. [PDF]

, 2010
New achiral and chiral RTILs were prepared using novel and/or optimized synthetic routes. These new series of imidazolinium, imidazolium, pyridinium and nicotine-derived ionic liquids were fully characterized including differential scanning calorimetry ...
Correia, Carlos R. D., Dandurand, Jany, Génisson, Yves, Pastre, Julio C., Saffon, Nathalie   +4 more
core   +4 more sources

para-Selective C-H amidation of simple arenes with nitriles [PDF]

, 2015
A para-selective C-H amidation of simple arenes with nitriles has been developed. By increasing the amount of arenes, a further meta-selective C-H arylation of the produced amides occurred.
Allen, Allen, Antonchick, Casitas, Chen, Fañanás-Mastral, Gao, Grohmann, Guérinot, Harvey, He, He, Hsieh, Huffman, Ichiishi, Ichiishi, Kantak, Kawano, Kim, Kim, King, Li, Li, Louillat, Lv, Marchetti, Matsuda, Nadres, Ng, Ng, Ng, Ng, Peng, Phipps, Phipps, Pialat, Ryu, Ryu, Shai, Shin, Shrestha, Skucas, Sokolovs, Su, Tew, Thomas, Thu, Tran, Tsang, Valeur, Wang, Wang, Wang, Xiang, Xu, Yoo, Zhang, Zhang, Zhang, Zhao   +59 more
core   +2 more sources

Palladium-Catalyzed C–H Arylation of 1,2,3-Triazoles

Molecules, 2016
Palladium(II) acetate, in combination with triphenylphosphine, catalyzes direct arylation of 1,4-disubstituted 1,2,3-triazoles effectively. This C–H arylation reaction provides facile access to fully substituted triazoles with well-defined regiochemistry.
Chengwei Zhang, Lin You, Chuo Chen
doaj   +1 more source

Regioselective zincation of indazoles using TMP2Zn and Negishi cross-coupling with aryl and heteroaryl iodides. [PDF]

, 2012
The metalation of various SEM-protected functionalized indazoles with TMP2Zn provides 3-zincated indazoles which undergo palladium-catalyzed Negishi cross-couplings in good ...
Andreas Unsinn, Batt, Bunnell, Bunnell, Chevallier, Clutterbuck, Collot, Crestey, Despotopoulou, Dong, Dunst, Farina, Fraile, Haag, Haag, Kienle, Knochel, Luo, Malamas, Mulvey, Negishi, Negishi, Negishi, Negishi, Negishi, Ohnmacht, Pabba, Paul Knochel, Perez, Peruncheralathan, Piazza, Pyne, Schmidt, Stadlbauer, Sun, Villieras, Welch, Whisler, Wunderlich, Wunderlich, Yang   +40 more
core   +1 more source

Synthesis of hetero-bifunctional, end-capped oligo-EDOT derivatives [PDF]

, 2016
Conjugated oligomers of 3,4-ethylenedioxythiophene (EDOT) are attractive materials for tissue engineering applications, and as model systems for studying the properties of the widely used polymer PEDOT.
Armgarth, A, Booth, M, Mawad, D, Nielsen, C, Spicer, C, Stevens, MM   +5 more
core   +4 more sources

Heteroaryliodonium(III) Salts as Highly Reactive Electrophiles

Frontiers in Chemistry, 2020
In recent years, the chemistry of heteroaryliodonium(III) salts has undergone significant developments. Heteroaryliodonium(III) salts have been found to be useful synthetic tools for the transfer of heteroaryl groups under metal-catalyzed and metal-free ...
Naoko Takenaga, Ravi Kumar, Toshifumi Dohi   +2 more
doaj   +1 more source

Q-Tube®-Assisted Alkylation and Arylation of Xanthines and Other N-H-Containing Heterocycles in Water

Chemistry, 2021
In this paper, a simple and clean process for the alkylation and arylation of nitrogen-containing heterocycles is reported. The reactions were conducted using the Q-tube® as a non-conventional technology, in water as a green solvent, at overboiling ...
Cecilia Scimmi, Margherita Cardinali, Laura Abenante, Marina Amatista, Francesca Giulia Nacca, Eder J. Lenardao, Luca Sancineto, Claudio Santi   +7 more
doaj   +1 more source

A dual catalytic strategy for carbon-phosphorus cross-coupling via gold and photoredox catalysis. [PDF]

, 2014
A new method for the P-arylation of aryldiazonium salts with H-phosphonates via dual gold and photoredox catalysis is described. The reaction proceeds smoothly at room temperature in the absence of base and/or additives, and offers an efficient approach ...
He, Ying, TOSTE, F. Dean, Wu, Hongmiao
core   +1 more source

Photoinduced synthesis of unsymmetrical diaryl selenides from triarylbismuthines and diaryl diselenides

Beilstein Journal of Organic Chemistry, 2013
A novel method of photoinduced synthesis of unsymmetrical diaryl selenides from triarylbismuthines and diaryl diselenides has been developed. Although the arylation reactions with triarylbismuthines are usually catalyzed by transition-metal complexes ...
Yohsuke Kobiki, Shin-ichi Kawaguchi, Takashi Ohe, Akiya Ogawa   +3 more
doaj   +1 more source