Anagram & Information om | Engelska ordet BORONIC

Exempel på hur man kan använda BORONIC i en mening

• In one system a carbenoid chloroalkyllithium reagent is prepared in situ from a sulfoxide and t-BuLi which reacts the boronic ester to give an ate complex.
• The first leg of the reaction sequence starts from the azeotropic dehydration of a boronic acid (1) such as one based on toluene to a boroxine (2).
• Boroxine derivatives (boronic anhydrides) such as trimethylboroxine and triphenylboroxine also make up a broader class of compounds called boroxines.
• Saccharide recognition in our probe system is achieved with a boronic acids appended viologen that serves as an analyte responsive fluorescence quencher.
• Heck's work set the stage for a variety of other palladium-catalyzed coupling reactions, including those of aryl halides with derivatives of boronic acid (Suzuki–Miyaura coupling), organotin reagents (Stille coupling), organomagnesium compounds (Kumada-Corriu coupling), silanes (Hiyama coupling), and organozincs (Negishi coupling), as well as with amines (Buchwald–Hartwig amination) and alcohols.
• Liebeskind-Srogl reaction is most commonly seen with sulfide or thioester electrophiles and boronic acid or stannane nucleophiles but many other coupling partners are viable.
• One example is the chloroalkyllithium carbenoid reagent prepared in situ from a sulfoxide and t-BuLi which inserts into the carbon-boron bond of a pinacol boronic ester:.
• A trialkoxyborane can react with lithium containing organic molecules to eliminate lithium and one or two alkoxy groups to make boronic and borinic esters.
• Boronic acids, and boronic esters are common boryl groups incorporated into organic molecules through borylation reactions.
• These include alkylation from alkyl halides, Suzuki-type reaction with boronic esters, borylation with bis(pinacolato)diboron, protonation with i-PrOH, decarboxylative alkynylation with alkynyl carboxylic acids.
• Protodeboronation, or protodeborylation is a chemical reaction involving the protonolysis of a boronic acid (or other organoborane compound) in which a carbon-boron bond is broken and replaced with a carbon-hydrogen bond.
• Disadvantages of both routes are the high price of the educts used (such as 4-bromobenzaldehyde, boronic esters of higher alcohols and butyllithium) as well as in the Nöth route the difficult workup after the hydrolysis by n-butanol.
• Vaborbactam is a boronic acid β-lactamase inhibitor with a high affinity for serine β-lactamases, including Klebsiella pneumoniae carbapenemase (KPC).
• Together they have developed methods for the Cu-mediated radiofluorination and radiocyanation of (mesityl)(aryl)iodonium salts, boronic acids and stannanes, as well as new methods for radiofluorination of C-H bonds and aryl halides.

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