ChemInform Abstract: Palladium(II) Oxide Impregnated on Magnetite as a Catalyst for the Synthesis of 4-Arylcoumarins via a Heck-Arylation/Cyclization Process.

ChemInform ◽  
2016 ◽  
Vol 47 (34) ◽  
Author(s):  
Juana M. Perez ◽  
Rafael Cano ◽  
Gerard P. McGlacken ◽  
Diego J. Ramon
Keyword(s):  
Cyclization Process ◽  
Heck Arylation

scholarly journals Palladium(ii) oxide impregnated on magnetite as a catalyst for the synthesis of 4-arylcoumarins via a Heck-arylation/cyclization process

RSC Advances ◽  
2016 ◽  
Vol 6 (43) ◽  
pp. 36932-36941 ◽  
Author(s):  
Juana M. Pérez ◽  
Rafael Cano ◽  
Gerard P. McGlacken ◽  
Diego J. Ramón
Keyword(s):  
Catalyst Loading ◽  
Cyclization Process ◽  
Heck Arylation

Heck-arylation/cyclization was achieved using heterogeneous palladium(ii) oxide impregnated on magnetite catalyst (2.5 mol%) with a lower catalyst loading than that reported for similar processes.

Cu2O-Catalyzed Tandem Ring-Opening/Coupling Cyclization Process for the Synthesis of 2,3-Dihydro-1,4-benzodioxins

2008 ◽  
Vol 10 (17) ◽  
pp. 3899-3902 ◽  
Author(s):  
Weiliang Bao ◽  
Yunyun Liu ◽  
Xin Lv ◽  
Weixing Qian
Keyword(s):  
Ring Opening ◽  
Cyclization Process

Synthesis of Arylidene-β-lactams via exo-Selective Matsuda-Heck Arylation of Methylene-β-lactams

2021 ◽  
Author(s):  
Nastja Riemer ◽  
Martin Riemer ◽  
Mandy Krüger ◽  
Guy J. Clarkson ◽  
Michael Shipman ◽  
...  
Keyword(s):  
Heck Arylation

Highly selective introduction of heteroatom groups to isocyanides and its application to electrocyclic reactions

2012 ◽  
Vol 85 (4) ◽  
pp. 785-799 ◽  
Author(s):  
Akiya Ogawa ◽  
Taichi Tamai ◽  
Takenori Mitamura ◽  
Akihiro Nomoto
Keyword(s):  
Cross Coupling ◽  
Molecular Iodine ◽  
Radical Cyclization ◽  
Sharp Contrast ◽  
Quinoline Derivatives ◽  
Coupling Reactions ◽  
Electrocyclic Reactions ◽  
Cross Coupling Reactions ◽  
Cyclization Process ◽  
Synthetic Intermediates

Photoinduced cyclization of o-alkenylaryl isocyanides with (PhS)2 in the presence of (PhTe)2 affords the corresponding bisthiolated indene derivatives in good yields via radical cyclization process by thio radical. The procedure can be applied to the construction of tetracyclic systems by using bis(o-aminophenyl) disulfides in place of (PhS)2. In sharp contrast, when o-alkynylaryl isocyanides are employed as the substrates, novel electrocyclic reactions take place upon photoirradiation or heating at 40~80 °C to generate quinoline 2,4-biradical species, which are trapped with organic diselenides, ditellurides, and molecular iodine to give the corresponding 2,4-diseleno-, ditelluro-, and diiodo-quinoline derivatives, respectively, in good yields. The obtained quinoline derivatives are useful synthetic intermediates; for example, cross-coupling reactions using 2,4-diiodoquinolines lead to the preparation of functionalized quinoline derivatives.

ChemInform Abstract: Pd-Arylurea Complexes for the Heck Arylation of Crotonic and Cinnamic Substrates.

ChemInform ◽  
2013 ◽  
Vol 44 (31) ◽  
pp. no-no
Author(s):  
Matthew R. Smith ◽  
Jung Yun Kim ◽  
Marco A. Ciufolini
Keyword(s):  
Heck Arylation

A tandem annulation with a [1,3]-hydride transfer as the key step leading to isochromans

2017 ◽  
Vol 53 (77) ◽  
pp. 10652-10655 ◽  
Author(s):  
Yingwei Wang ◽  
Guangxun Li ◽  
Hongxin Liu ◽  
Zhuo Tang ◽  
Yuan Cao ◽  
...  
Keyword(s):  
Hydride Transfer ◽  
Cyclization Process

The first [1,3]-hydride transfer/cyclization process for oxacarbenium isomerization.

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