Information om | Engelska ordet ENANTIOSELECTIVE

Exempel på hur man kan använda ENANTIOSELECTIVE i en mening

• The Sharpless epoxidation reaction is an enantioselective chemical reaction to prepare 2,3-epoxyalcohols from primary and secondary allylic alcohols.
• In 2018, the same group published a more advanced version of this concept in which the molecular ring shuttles along a polymeric track to assemble an oligopeptide that can fold into an α-helix that can perform the enantioselective epoxidation of a chalcone derivative (in a way reminiscent to the ribosome assembling an enzyme).
• BINAP is used in organic synthesis for enantioselective transformations catalyzed by its complexes of ruthenium, rhodium, and palladium.
• Although he is best known for his work on the aldol reaction, he also developed methodology for anionic oxy-Cope rearrangements, metal catalyzed hydroborations, and catalytic, enantioselective reactions based on bis-oxazoline (box) ligands.
• A Diels-Alder reaction is an example of a potentially very atom efficient reaction that also can be chemo-, regio-, diastereo- and enantioselective.
• The Jacobsen epoxidation, sometimes also referred to as Jacobsen-Katsuki epoxidation is a chemical reaction which allows enantioselective epoxidation of unfunctionalized alkyl- and aryl- substituted alkenes.
• A more recent enantioselective synthesis involves an intramolecular aldol addition/dehydration reaction of a macrocyclic diketone.
• Recently, a second, enantiocomplementary dirigent protein was identified in Arabidopsis thaliana, which directs enantioselective synthesis of (−)-pinoresinol.
• Recently, a second, enantiocomplementary dirigent protein was identified in Arabidopsis thaliana, which directs enantioselective synthesis of (-)-pinoresinol.
• Though enantioselective syntheses have been reported, racemic grandisol has proven equally effective at attracting boll weevils as the natural enantiomer, rendering moot the need for enantioselective syntheses for agricultural purposes.
• Being prochiral, valerophenone undergoes enantioselective hydrogenation to the corresponding alcohol.
• Since 1999, the group concentrates on enantioselective organocatalysis as a fundamental approach complementing biocatalysis and transition metal catalysis.
• Lipases are chiral, which means that they can be used for the enantioselective hydrolysis prochiral diesters.
• In particular, he has developed a silicon/pseudoephedrine allylation reagent for the highly enantioselective allylation of aldehydes and aldehyde/ketone derived hydrazones to give chiral alcohols and secondary/tertiary carbinamines, respectively.
• Although examples of enantioselective α-ketol rearrangements starting from achiral α-hydroxy ketones are fairly limited, a number of examples of 1,2-asymmetric induction (due to stereoelectronic factors) have been observed.
• Enantiopure tert-butanesulfinamide can be prepared by enantioselective oxidation of inexpensive di-tert-butyl disulfide to the thiosulfinate followed by disulfide bond cleavage by lithium amide.
• Related to the Guerbet reaction, Donohoe and coworkers have developed enantioselective borrowing hydrogen-type enolate alkylations.
• Recently, a second, enantiocomplementary dirigent protein was identified in Arabidopsis thaliana, which directs enantioselective synthesis of (-)-pinoresinol.
• An enantioselective (80 to 92% ee) reduction of prochiral α,β-unsaturated esters uses Tol-BINAP complexes of copper in the presence of PMHS as the reductant.
• Shibasaki catalysts are effective for a wide range of enantioselective reactions including nitroaldol, Michael, Diels-Alder and hydrophosphonylation reactions.

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