Results 261 to 270 of about 3,861,733 (345)

Catalytic Enantioselective Passerini Three‐Component Reaction

Angewandte Chemie International Edition, 2007
A [(salen)-AlIIICl] complex catalyzes the Passerini three-component reaction of an aldehyde, a carboxylic acid, and an isocyanide to afford alpha -acyloxyamides, e.g., I, with good to excellent enantioselectivity. A variety of nonchelating substrates can be used to generate the versatile chiral products. [on SciFinder (R)]
Wang, Shi-Xin, Wang, Mei-Xiang, Wang, De-Xian, Zhu, Jieping   +3 more
openaire   +2 more sources

Three-Component Reactions for Post-Polymerization Modifications

ACS Macro Letters, 2013
A Cu-catalyzed multi-component reaction (CuMCR) of terminal alkynes, sulfonyl azides, and amines was employed in a post-polymerization modification process. The reaction was conducted on polystyrene bearing 20 mol % alkyne groups with 4-toluenesulfonyl azide and dihexylamine in the presence of a Cu(PPh3)3Br/diisopropylethylamine catalyst.
Ryohei, Kakuchi, Patrick, Theato
openaire   +2 more sources

Copper-Catalyzed Three-Component Reaction of Alkynes, TMSN3, and Ethers: Regiocontrollable Synthesis of N1- and N2-Oxyalkylated 1,2,3-Triazoles.

Organic Letters, 2019
A new copper-catalyzed selective synthesis of N1- and N2-oxyalkylated 1,2,3-triazoles has been developed through a three-component reaction of alkynes, TMSN3, and ethers. Through this methodology, a series of N1- and N2-oxyalkylated 1,2,3-triazoles could
Pengli Bao, H. Yue, N. Meng, Xiaohui Zhao, Jiangsheng Li, Wei Wei   +5 more
semanticscholar   +1 more source

Amino-Sulfonation of Alkenes in a Three-Component Reaction

European Journal of Organic Chemistry, 2002
2-aminoalkanesulfonic acids were synthesized by a three-component alkene-SO3.DMF-acetonitrile reaction, followed by acetamido hydrolysis. Trifluoromethanesulfonic acid was added to the amino-sulfonation mixture to accelerate the reaction and prevent the competitive formation of by-products.
Cordero Franca M, Cacciarini Martina, Machetti Fabrizio, De Sarlo Francesco   +3 more
openaire   +3 more sources

Three‐Component Reactions of Halogenotrinitromethanes with Alkenes.

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Ekaterina M. Budynina, Olga A. Ivanova, Elena B. Averina, Yurii K. Grishin, Tamara S. Kuznetsova, Nikolai S. Zefirov   +5 more
openaire   +2 more sources

Sustainable Modification of Carboxymethyl Cellulose by Passerini Three-Component Reaction and Subsequent Adsorption onto Cellulosic Substrates

ACS Sustainable Chemistry and Engineering, 2019
The present work describes the chemical modification of carboxymethyl cellulose (CMC), a widely diffused commercial cellulose ether, by means of the Passerini three-component reaction (P-3CR).
A. Pettignano, Adélie Daunay, C. Moreau, B. Cathala, A. Charlot, E. Fleury   +5 more
semanticscholar   +1 more source

Diastereoselective construction of carbazole-based spirooxindoles via the Levy three-component reaction.

Organic and biomolecular chemistry, 2019
The CuSO4 catalyzed three-component reaction of indole-2-acetate, aromatic aldehydes and 3-methyleneoxindoles in toluene at 130 °C afforded polysubstituted spiro[carbazole-3,3'-indolines] in good yields and with high diastereoselectivity.
Shao‐Cong Zhan, Jing Sun, Ruzhang Liu, Chaoguo Yan   +3 more
semanticscholar   +1 more source

A Novel Isocyanide Based Three Component Reaction.

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Oliver T, Kern, William B, Motherwell
openaire   +2 more sources

Covalent immobilization of laccase by one pot three component reaction and its application in the decolorization of textile dyes.

International Journal of Biological Macromolecules, 2018
In present study, laccase from Myceliophthora thermophila, was immobilized on epoxy-functionalized silica via one-pot three component reaction as a novel and efficient method for immobilization.
F. Salami, Z. Habibi, M. Yousefi, Mehdi Mohammadi   +3 more
semanticscholar   +1 more source

Three‐Component Reactions of Tetranitromethane with Olefins.

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
E. B. Averina, E. M. Budynina, O. A. Ivanova, Yu. K. Grishin, S. M. Gerdov, T. S. Kuznetsova, N. S. Zefirov   +6 more
openaire   +2 more sources