M
Mikael Bergdahl
Researcher at San Diego State University
Publications - 25
Citations - 449
Mikael Bergdahl is an academic researcher from San Diego State University. The author has contributed to research in topics: Reagent & Conjugate. The author has an hindex of 12, co-authored 24 publications receiving 428 citations. Previous affiliations of Mikael Bergdahl include Chalmers University of Technology.
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Wittig reactions in water media employing stabilized ylides with aldehydes. Synthesis of alpha,beta-unsaturated esters from mixing aldehydes, alpha-bromoesters, and Ph3P in aqueous NaHCO3.
TL;DR: Water is demonstrated to be an effective medium for the Wittig reaction over a wide range of stabilized ylides and aldehydes as mentioned in this paper, and good chemical yields normally ranging from 80 to 98% and high E-selectivities (up to 99%) are achieved.
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Water is an efficient medium for Wittig reactions employing stabilized ylides and aldehydes
TL;DR: Water is an excellent medium for the Wittig reaction employing stabilized ylides and aldehydes as discussed by the authors, and the rate of Wittig reactions in water is unexpectedly accelerated.
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Iodotrimethylsilane-promoted additions of monoorganocopper compounds to .alpha.,.beta.-unsaturated ketones, esters, and lactones
TL;DR: The RCu-(LiI)-TMSI reagent gives a good economy of group transfer with good to excellent yields of conjugate adducts as discussed by the authors, and is a most useful alternative to the conventional lithium diorganocuprates in conjugates.
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Highly diastereoselective conjugate additions of monoorganocopper reagents to chiral imides
TL;DR: The results show that iodotrimethylsilane (TMSI) is crucial for the asymmetric conjugate addition of the copper reagent, but only in THF or when 12-crown-4 is used.
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Direct Copper(I) Iodide Dimethyl Sulfide Catalyzed Conjugate Addition of Alkenyl Groups from Vinylzirconocene Reagents
TL;DR: This simple one-pot procedure shows that only 1 equiv of the vinylzirconocene is needed, and the catalyst is superior in terms of product yields and alkene flexibility in comparison to other copper(I) sources as well as the nickel(II)-catalyzed conjugate addition.