Results 21 to 30 of about 4,790 (158)

New Access to Pyrano[2,3-c]pyrazole-3-carboxylates via Domino Four-Component Reaction and Their Antimicrobial Activity

Indonesian Journal of Chemistry, 2019
A library of some novel classes of pyrano[2,3-c]pyrazole-3-carboxylates was synthesized by employing uncatalyzed domino four-component reaction using diethyloxaloacetate, hydrazine hydrate, aldehydes and malononitrile in refluxing of ethanol-acetic acid ...
Muhammad Siddiq Maarop, Fatin Nur Ain Abdul Rashid, Mohd Fazli Mohammat, Zurina Shaameri, Saiful Azmi Johari, Mazurah Mohamed Isa, Anis Low Muhammad Low   +6 more
doaj   +1 more source

Electrochemical transient iodination and coupling for selenylated 4-anilinocoumarin synthesis

Green Synthesis and Catalysis, 2021
An electrochemical transient iodination and coupling reaction has been designed for constructing selenylated 4-anilinocoumarins via the domino reactions of 4-anilinocoumarins and diorganyl diselenides under base-, chemical oxidant- and external ...
Yan Wu, Jin-Yang Chen, Hong-Rui Liao, Xiao-Rong Shu, Li-Lan Duan, Xiao-Feng Yang, Wei-Min He   +6 more
doaj   +1 more source

Microwave-assisted three-component domino reaction: Synthesis of indolodiazepinotriazoles

Beilstein Journal of Organic Chemistry, 2013
A microwave-assisted three-component protocol involving N-1 alkylation of 2-alkynylindoles with epichlorohydrin, ring opening of the epoxide with sodium azide, and an intramolecular Huisgen azide–internal alkyne 1,3-dipolar cycloaddition domino sequence ...
Rajesh K. Arigela, Sudhir K. Sharma, Brijesh Kumar, Bijoy Kundu   +3 more
doaj   +1 more source

The Hydroarylation Reaction—Scope and Limitations

Molecules, 2010
The synthetic potential of stereoselective, palladium-catalyzed hydro(het)arylation reactions of bi-, tri- and tetracyclic (hetero)alkenes in the presence of phospines and arsines as highly efficient ligands was studied.
Jan C. Namyslo, Jörg Storsberg, Jens Klinge, Christian Gärtner, Min-Liang Yao, Nuket Ocal, Dieter Eckhard Kaufmann   +6 more
doaj   +1 more source

Catalytic Radical Domino Reactions in Organic Synthesis [PDF]

ACS Catalysis, 2014
Catalytic radical-based domino reactions represent important advances in synthetic organic chemistry. Their development benefits synthesis by providing atom- and step-economical methods to complex molecules. Intricate combinations of radical, cationic, anionic, oxidative/reductive, and transition metal mechanistic steps result in cyclizations ...
Leanne J, Sebren, James J, Devery, Corey R J, Stephenson   +2 more
openaire   +2 more sources

Synthesis of Benzothiophene-Fused Pyran Derivatives via Piperidine Promoted Domino Reaction

Heteroatom Chemistry, 2019
A new domino reaction between thioaurones and malononitrile has been reported. This reaction allows efficient access to benzothiophene-fused pyran derivatives in good yields under mild reaction conditions.
Shihang Li, Aimin Yu, Jianfa Li, Xiangtai Meng   +3 more
doaj   +1 more source

Computational and Experimental Studies on the α-Functionalization of Ketones Using Domino Reactions: A Strategy to Increase Chemoselectivity at the α-Carbon of Ketones

Molecules
A facile strategy to increase the chemoselectivity of domino reactions was proposed and successfully applied in the α-functionalization of ketones.
Hui Sun, Li-Heng Yang, Meng-Yun Fu, Bin Cui   +3 more
doaj   +1 more source

Domino Heck—Pericyclic Reactions

ChemInform, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
von Zezschwitz, Paultheo, de Meijere, Armin   +1 more
openaire   +2 more sources

Synthesis of biscoumarin derivatives by the reaction of aldehydes and 4-hydroxycoumarin using ruthenium (III) chloride hydrate as a versatile homogeneous catalyst [PDF]

Journal of the Serbian Chemical Society, 2012
The one-pot domino Knoevenagel-type condensation/Michael reaction of aromatic, heteroaromatic and aliphatic aldehydes with 4-hydroxycoumarin in aqueous media in the presence of ruthenium salt as homogeneous catalyst was investigated. It was found that
Tabatabaeian Khalil, Heidari Hannaneh, Khorshidi Alireza, Mamaghani Manouchehr, Mahmoodi Nosrat O.   +4 more
doaj   +1 more source

Facile synthesis of functionalized tetrahydroquinolines via domino Povarov reactions of arylamines, methyl propiolate and aromatic aldehydes

Beilstein Journal of Organic Chemistry, 2012
In the presence of p-toluenesulfonic acid as catalyst the domino reaction of arylamines, methyl propiolates and aromatic aldehydes in ethanol proceeded smoothly to give polysubstituted 1,2,3,4-tetrahydroquinolines in moderate yields.
Jing Sun, Hong Gao, Qun Wu, Chao-Guo Yan
doaj   +1 more source