Results 41 to 50 of about 4,790 (158)

Three-Component Coupling Reactions of Arynes for the Synthesis of Benzofurans and Coumarins

Molecules, 2014
The domino three-component coupling reaction of arynes with DMF and active methylenes or methines was studied as a highly efficient method for preparing heterocycles.
Eito Yoshioka, Shigeru Kohtani, Hideto Miyabe   +2 more
doaj   +1 more source

2,3,4,9-Tetrahydro-9-(3-hydroxy-1,4-dioxo-1H-dihydro-naphthalen-2-yl)-8-methoxy-3,3-dimethyl-1H-xanthen-1-one

Molbank, 2015
The title compound 2,3,4,9-tetrahydro-9-(3-hydroxy-1,4-dioxo-1H-dihydro-naphthalen-2-yl)-8-methoxy-3,3-dimethyl-1H-xanthen-1-one (5) was obtained by the nucleophilic addition of 2-hydroxy-1,4-naphthoquinone (4) to 2H-chromene derivative 3, which was ...
Eito Yoshioka, Shigeru Kohtani, Hideto Miyabe   +2 more
doaj   +1 more source

Copper-Catalyzed Four-Component A³-Based Cascade Reaction: Facile Synthesis of 3-Oxetanone-Derived Spirocycles

Chemistry
3-Oxetanone-derived spirooxazolidines represent a class of building blocks for accessing diverse saturated heterocycles, but their synthetic methods remain unexplored.
Rongkang Zhang, Liliang Huang, Aiguo Gu, Huangdi Feng   +3 more
doaj   +1 more source

A Simple and Efficient Synthesis of Highly Substituted Indeno[1,2-b]pyrrole and Acenaphtho[1,2-b]pyrrole Derivatives by Tandem Three-Component Reactions

Molecules, 2018
A green, convenient and tandem procedure for the efficient synthesis of highly substituted indeno[1,2-b]pyrrole and acenaphtho[1,2-b]pyrrole derivatives by domino three-component reaction of tryptamine/benzylamine, 1,3-dicarbonyl compounds and ninhydrin/
Xiaodong Tang, Songlei Zhu, Ying Ma, Ren Wen, Lanqi Cen, Panwei Gong, Jing Wang   +6 more
doaj   +1 more source

Synthesis of pyrrolo[3,2-d]pyrimidine-2,4(3H)-diones by domino C–N coupling/hydroamination reactions

Beilstein Journal of Organic Chemistry
A variety of pyrrolo[3,2-d]pyrimidine-2,4(3H)-diones were prepared by a combination of Sonogashira reaction and subsequent cyclization by domino C–N coupling/hydroamination reaction.
Ruben Manuel Figueira de Abreu, Robin Tiedemann, Peter Ehlers, Peter Langer   +3 more
doaj   +1 more source

rac-(3aR,6aR)-(E)-Methyl 2-(3a-methylperhydrofuro[3,2-b]furan-2-ylidene)acetate

Acta Crystallographica Section E, 2010
The constitution and relative configuration at the stereogenic centres and stereochemistry of the C—C double bond formed during PdII-catalysed domino reaction was established by X-ray analysis of the title compound, C10H14O4.
Lenka Bellovičová, Jozef Kožíšek, Jana Doháňošová, Angelika Lásiková, Tibor Gracza   +4 more
doaj   +1 more source

Alcohol Participates in the Synthesis of Functionalized Coumarin-Fused Pyrazolo[3,4-b]Pyridine from a One-Pot Three-Component Reaction

Molecules, 2019
A concise and efficient approach to synthesizing coumarin-fused pyrazolo[3,4-b]pyridine via silica sulfuric acid (SSA) catalyzed three-component domino reaction under microwave irradiation has been demonstrated.
Wei Lin, Cangwei Zhuang, Xiuxiu Hu, Juanjuan Zhang, Juxian Wang   +4 more
doaj   +1 more source

A domino reaction for the synthesis of pyrrolo[2,1-a]isoquinolines from 2-aryl-pyrrolidines and alkynes promoted by a four-component catalytic system under aerobic conditions. [PDF]

RSC Adv, 2023
Luo Z, Hu H, Wang C, Yang Z, Wang Y.
europepmc   +1 more source

Easy Access to a Cyclic Key Intermediate for the Synthesis of Trisporic Acids and Related Compounds

Molecules, 2014
The synthesis of a cyclohexane skeleton possessing different oxygenated functional groups at C–3, C–8 and C–9, and a D1,6-double bond has been accomplished in 10 steps with an overall 17% yield.
José A. González-Delgado, Gustavo Escobar, Jesús F. Arteaga, Alejandro F. Barrero   +3 more
doaj   +1 more source

Four-Step Domino Reaction Enables Fully Controlled Non-Statistical Synthesis of Hexaarylbenzene with Six Different Aryl Groups*. [PDF]

Angew Chem Int Ed Engl, 2021
Grau BW, Dill M, Hampel F, Kahnt A, Jux N, Tsogoeva SB.   +5 more
europepmc   +1 more source