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Slater, An Unexpected Stereochemical Course of Dihydroimidazolium Ylide Cycloadditions, Chem.
Bagheri, "Highly effective catalytic methods for ylide generation from diazo compounds.
Objective: Our group has recently discovered a new type of cofactor: a prenylated-flavin that has azomethine ylide properties.
Shahraki, "1H NMR technique for kinetic investigation of equilibrium between the Z- and E-isomers in a stable phosphorus ylide involving a 2-indolinone," Progress in Reaction Kinetics and Mechanism, vol.
[section]ahin, "Polysubstituted fused ring bicyclic thiohydantoins from aminocarbo-N-thioylpyrrolidines derived from azomethine ylide 1,3-dipolar cycloadditions," Heterocycles, vol.
Shahraki, "[sup.1]H NMR technique for kinetic investigation of equilibrium between the Z- and E-isomers in a stable phosphorus ylide involving a 2-indolinone," Progress in Reaction Kinetics and Mechanism, vol.
Generation of dianion (base) in the presence of phosphonium salt and concomitant formation of ylide at sufficiently high cathodic potential as per Eq.
According to press release issued here on Monday, the title of the poster was "Highly Selective Sulphur Ylide Mediated Asymmetric Epoxidations and Aziridinations Using an Inexpensive Chiral Sulfide; Applications to the Synthesis of Quinine and Quinidine." Quinine is a well-known anti-malarial drug and its synthesis is considered a challenging task.
According to press release issued here on Monday, the title of the poster was Highly Selective Sulfur Ylide Mediated Asymmetric Epoxidations and Aziridinations Using an Inexpensive Chiral Sulfide; Applications to the Synthesis of Quinine and Quinidine.
The team created the ylide (benzoylmethylene) triphenylphosphorane by ball-milling (phenacyl) triphenylphosphonium bromide with anhydrous potassium carbonate ([K.sub.2]C[O.sub.3]), a base.
Lebel and co-workers have found that Wilkinson's catalyst [[ClRh([PPh.sub.3]).sub.3]] can be used to generate the key phosphonium ylide from [PPh.sub.3] and the diazo compound [TMSCHN.sub.2] (TMS = [SiMe.sub.3]).
PHOTO : ylide of the structure [Mathematical Expressions Omitted].
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