Journal ArticleDOI
Intramolecular Heck Reaction on Bromobenzyloxy-Substituted Chromenes: Formation of Chelated Ketones
Reads0
Chats0
TLDR
In this paper, the Heck reaction on 2-bromobenzyloxy-substituted 4H-chromene derivatives using Pd(OAc)2 in Aliquat 336 and N,N-dimethylformamide mixture leads to intramolecular heteroannulation along with hydrolysis, affording chelated 6H-benzo[c]chromen-2-yl ketones.About:
This article is published in Synthetic Communications.The article was published on 2013-03-06. It has received 5 citations till now. The article focuses on the topics: Heck reaction & Regioselectivity.read more
Citations
More filters
Journal ArticleDOI
The amino side chains do matter: chemoselectivity in the one-pot three-component synthesis of 2-amino-4H-chromenes by supramolecular catalysis with amino-appended β-cyclodextrins (ACDs) in water
Yufeng Ren,Bo Yang,Xiali Liao +2 more
TL;DR: In this study, the one-pot three-component synthesis of 2-amino-4H-chromenes was accomplished by supramolecular catalysis using a series of well-designed amino-appended β-cyclodextrins (ACDs) in water.
Journal ArticleDOI
Synthesis and characterization of a novel Fe3O4@SiO2–BenzIm-Fc[Cl]/BiOCl nano-composite and its efficient catalytic activity in the ultrasound-assisted synthesis of diverse chromene analogs
TL;DR: In this article, a magnetically recoverable Fe3O4@SiO2−BenzIm-Fc[Cl]/BiOCl nano-composite was synthesized using a simple chemical co-precipitation method.
Journal ArticleDOI
Comparative in vivo evaluation of polyalkoxy substituted 4H-chromenes and oxa-podophyllotoxins as microtubule destabilizing agents in the phenotypic sea urchin embryo assay.
Marina N. Semenova,Dmitry V. Tsyganov,Oleg R. Malyshev,Oleg V. Ershov,Ivan N. Bardasov,Roman V. Semenov,Alex S. Kiselyov,Victor V. Semenov +7 more
TL;DR: A series of polyalkoxy substituted 7-hydroxy- and 7-methoxy-4-aryl-4H-chromenes evaluated using the sea urchin embryo model yielded several compounds exhibiting potent antimitotic microtubule destabilizing activity.
References
More filters
Journal ArticleDOI
Regio- and stereoselective intramolecular Heck reactions of N-acyl-2,3-dihydro-4-pyridones
TL;DR: The Heck reactions of N-acyl-2,3-dihydro-4-pyridones provide polycyclic heterocycles with high regio- and stereoselectivity as discussed by the authors.
Journal ArticleDOI
An expeditious synthesis of novel pyranopyridine derivatives involving chromenes under controlled microwave irradiation
TL;DR: In this article, the cyclocondensation of 2-amino-3-cyano-4H-chromenes and cyclohexanone in the presence of aluminium chloride under controlled microwave irradiation is described.
Journal ArticleDOI
A New Route to the Synthesis of (E)- and (Z)-2-Alkene-4-ynoates and Nitriles from vic-Diiodo-(E)-alkenes Catalyzed by Pd(0) Nanoparticles in Water
TL;DR: An efficient procedure for the stereoselective synthesis of (E)- and (Z)-2-alkene-4-ynoates and -nitriles by a simple reaction of vic-diiodo-(E)-alkenes with acrylic esters and nitriles catalyzed by in situ prepared Pd(0) nanoparticles in water has been developed.
Journal ArticleDOI
New Method for the Extraction of Lactic Acid by Means of a Modified Extractant (Aliquat 336)
TL;DR: In this article, a quaternary ammonium salt (Aliquat 336), dissolved in 1-decanol and n-dodecane, is treated successively with different concentrations of ammonium carbonate for replacement of the chloride anion with a carbonate one.
Journal ArticleDOI
Investigation of the behavior of arenediazonium salts with olefins in BmimPF6
TL;DR: In this article, the palladium-catalyzed reactions of olefins with arenediazonium salts in ionic liquids were investigated, and normal Heck cross-coupling products were obtained in good yields.