Claisen condensation:克萊森酯縮合反應
克萊森酯縮合反應
克萊森縮合反應(Claisen縮合反應)是指兩分子羧酸酯在強鹼(如乙醇鈉)催化下,失去一分子醇而縮合為一分子β-羰基羧酸酯的反應。參與反應的兩個酯分子不必相同,但 ...。其他文章還包含有:「Claisencondensation」、「ClaisenCondensation」、「23.7」、「Acetoacetic」、「ClaisenCondensationandDieckmannCondensation」、「ClaisenCondensation」、「ClaisenCondensationReactionMechanism」、「13.4」、「ClaisenCondens...
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https://en.wikipedia.org
The Claisen condensation is a carbon–carbon bond forming reaction that occurs between two esters or one ester and another carbonyl compound in the presence ...
Claisen Condensation
https://byjus.com
The Claisen condensation reaction is an organic coupling reaction that results in the formation of a C-C bond between either a single ester and one carbonyl ...
23.7
https://chem.libretexts.org
During the reaction a new carbon-carbon is formed to produce a β-keto ester product. This reaction is considered a condensation because it ...
Acetoacetic
https://www.organic-chemistry.
The Claisen Condensation between esters containing α-hydrogens, promoted by a base such as sodium ethoxide, affords β-ketoesters. The driving force is the ...
Claisen Condensation and Dieckmann Condensation
https://www.masterorganicchemi
The Claisen condensation is a key reaction of esters. It's a nucleophilic acyl substitution between an enolate and an ester.
Claisen Condensation
https://www.sciencedirect.com
Claisen condensation first discovered by Rainer Ludwig Claisen in 1887 is a carbon-carbon coupling reaction between two esters or one ester and another carbonyl ...
Claisen Condensation Reaction Mechanism
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13.4
https://chem.libretexts.org
In a typical retro-Claisen reaction, a thiol (or other nucleophile such as water) attacks the carbonyl group of a β-thioester substrate (step 1) ...
Claisen Condensation
https://www.sciencedirect.com
The Claisen condensation – strictly the condensation of two esters with the concomitant release of one of the constituent alcohol moieties – is arguably the ...