Claisen (German pronunciation: [ˈʁaɪnɐ ˈklaɪzn̩]; 14 January 1851 – 5 January 1930) was a German chemist best known for his work with condensations of...

The Darzens reaction (also known as the Darzens condensation or glycidic ester condensation) is the chemical reaction of a ketone or aldehyde with an...

inhibiting the reaction. Benzoin condensation Bouveault–Blanc reduction Claisen condensation Dieckmann condensation Bouveault, L.; Locquin, R. (1905)...

often performed in organic chemistry classes, and is called Claisen-Schmidt condensation. Prolonged exposure to sunlight initiates [2+2] cycloadditions...

elimination Ciamician–Dennstedt rearrangement Claisen condensation Claisen rearrangement Claisen–Schmidt condensation Clemmensen reduction Collins reagent Combes...

Crossed Claisen condensations, in which the enolate and nucleophile are different esters, are also possible. An intramolecular Claisen condensation is called...

so-called name reactions, such as Knoevenagel condensation, Wittig reaction, Claisen–Schmidt condensation, Schotten–Baumann reaction, and Diels–Alder reaction...

alkaline conditions) to salts of formic acid and methanol. The Johnson–Claisen rearrangement is the reaction of an allylic alcohol with an ortho ester...

catalyzes a Claisen condensation with the bound tetraketide. However, since module 4 contains an inactive KR domain, the β-ketone condensation product is...

starts with a Claisen condensation of vanillin and acetone, producing dehydrozingerone. Afterwards the product reacts in an aldol condensation with hexanal...

chalcone synthase, undergoing successive condensation reactions and ultimately a ring-closing Claisen condensation to afford naringenin chalcone. The corresponding...

Baylis–Hillman reaction Ivanov reaction Reformatsky reaction Claisen-Schmidt condensation It is typically best to minimize heat for this reaction. As removal...

atom. Enols are commonly used in condensation reactions, including the Claisen condensation and the aldol condensation reactions.[citation needed] Examples...

(substituted) 1,5-diketones. Classically, 1,3-diketones are prepared by the Claisen condensation of a ketone with an ester. Malonic acid and its esters are the parent...

second carbon from the carboxylic acid. They generally form by the Claisen condensation. The presence of the keto group at the beta position allows them...

unreactive toward ethanol: CH3CO2C2H5 + NaOH → C2H5OH + CH3CO2Na In the Claisen condensation, anhydrous ethyl acetate and strong bases react to give ethyl acetoacetate:...

elimination of α-bromo-cyclopentanone using lithium carbonate and Claisen condensation-decarboxylation-isomerization cascades of unsaturated diesters as...

phenylacetic acid ethyl ester. Subsequently, this ester undergoes cross Claisen condensation using diethyl oxalate, giving diethyl ester of phenyloxobutandioic...

diethyl oxalate and 3,3-dimethylpentanoic acid, which reacted by Claisen condensation to yield diketocamphoric acid. Methylation with methyl iodide and...

bound citryl-coenzyme A intermediate in a 2-step process (aldol-Claisen condensation followed by the hydrolysis of citryl-CoA). Citrate synthase enzymes...

Mevalonate synthesis begins with the beta-ketothiolase-catalyzed Claisen condensation of two molecules of acetyl-CoA to produce acetoacetyl CoA. The following...

are generally less severe than with other similar drugs. The Claisen-Schmidt condensation between 3-(methoxymethoxy)benzaldehyde [13709-05-2] (1) and cyclohexanone...

with 3-bromopropene to produce phenylallyl ether and subsequently its Claisen rearrangement, gives rise to 2-hydroxyphenylacetic acid, which, through...

The fatty acids are synthesized by a series of decarboxylative Claisen condensation reactions from acetyl-CoA and malonyl-CoA. Following each round of...

acceptors. Unlike 1,3-dicarbonyls, which are easily accessed through the Claisen condensation, or 1,5-dicarbonyls, which are commonly made using a Michael reaction...

cyclization/aromatization, using cyclase/aromatase, respectively, through a Claisen and aldol condensation to form the benzophenone intermediate. The benzophenone intermediate...

2-oximinoacetoacetate and 2-methyl-3-oxobutanal, in turn made by the Claisen condensation of 2-butanone with ethyl formate. George Kleinspehn reported that...

chemical reactions (among which is a rare chemical reaction known as a Claisen condensation), going through four intermediates before resulting in saxitoxin...

discussed in this article is the simplest member. Bamberger rearrangement Claisen rearrangement Cresol Fries rearrangement Polyphenol "Front Matter". Nomenclature...

diastereoselectivity. Camphorsultam was used as a chiral auxiliary for the asymmetric Claisen rearrangement. In the presence of butylated hydroxytoluene (BHT) used as...