Q1. What are the contributions in "New synthesis and cyclopropanation of α-phenylselanyl α,β-unsaturated ketones with non-stabilized phosphorus ylides" ?
In this paper, a general method for the preparation of -phenylselanyl enones is described.
New synthesis and cyclopropanation of α-phenylselanyl α,β-unsaturated ketones with non-stabilized phosphorus ylides
TLDR
In this paper, a general method for the preparation of α-phenylselanyl enones is described, and a 1,4-addition is used to obtain cyclopropanes and/or dihydrofurans.About:
This article is published in Tetrahedron.The article was published on 2008-09-22 and is currently open access. It has received 23 citations till now. The article focuses on the topics: Enone & Cyclopropanation.read more
Citations
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Journal ArticleDOI
Diastereoselective Synthesis of trans-2,3-Dihydrofurans with Pyridinium Ylide Assisted Tandem Reaction
TL;DR: H NMR spectroscopy and single-crystal analysis demonstrated that the obtained 2,3-dihydrofurans are trans isomers.
Journal ArticleDOI
On the Mechanism of Ylide-Mediated Cyclopropanations: Evidence for a Proton-Transfer Step and Its Effect on Stereoselectivity
Samantha L. Riches,Chandreyee Saha,Noelia Fontán Filgueira,Emma Grange,Eoghan M. McGarrigle,Varinder K. Aggarwal +5 more
TL;DR: By applying this model to S-, N-, and P-ylides the authors have been able to rationalize the outcome of different ylide reactions bearing a variety of substituents in terms of chemo- and enantioselectivity.
Journal ArticleDOI
Synthesis of disulfides and diselenides by copper-catalyzed coupling reactions in water
TL;DR: A simple and efficient protocol for copper-catalyzed coupling reactions between aryl halides and elemental sulfur or selenium has been developed and a variety of disulfides and diselenides can be obtained in moderate to excellent yields up to 96%.
Journal ArticleDOI
Reaction of Corey ylide with α,β-unsaturated ketones: tuning of chemoselectivity toward dihydrofuran synthesis.
Alexey O. Chagarovsky,Ekaterina M. Budynina,Olga A. Ivanova,Elena V. Villemson,Victor B. Rybakov,Igor V. Trushkov,Mikhail Ya. Melnikov +6 more
TL;DR: A straightforward, efficient, and reliable approach to synthetically valuable 2,3-dihydrofurans via a reaction between Corey ylide and α,β-unsaturated ketones has been developed.
References
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Stereoselective Cyclopropanation Reactions
TL;DR: This review will focus mainly on the new methods that have appeared in the literature since 1989 for stereoselective cyclopropanation reactions from olefins: the halomethylmetal-mediated cycloalkane reactions, the transition metal-catalyzed decomposition of diazo compounds, and the nucleophilic addition-ring closure sequence.
Book
The Chemistry of Organic Selenium and Tellurium Compounds
Saul Patai,Zvi Rappoport +1 more
TL;DR: In this article, Zade et al. present a list of functional groups containing selenium and tellurium and some that are not known and some of which are biologically relevant small molecules containing them.
Book
Selenium reagents and intermediates in organic synthesis
TL;DR: The main aspects of selenoorganic chemistry can be found in this article, where the authors present an overview of the selenides, selenoxides and selenones.
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