Buchler Glossary
Wolff Rearrangement
The Wolff Rearrangement allows the generation of ketenes from α-diazoketones. During this reaction an α-diazocarbonyl...
Tamura Cyclization
In the presence of a Cinchona squaramide-based catalyst, enolizable anhydrides react with alkylidene oxindoles to...
Betti Reaction
The three-component reaction of aldehydes, primary aromatic amines, and phenols to produce α-aminobenzylphenols is...
Barton-Zard Reaction
The Barton–Zard reaction is a route to pyrrole derivatives via the reaction of a nitroalkene with an α-isocyanoacetate...
Cinchona Alkaloids
Cinchona alkaloids are complex small molecules containing five stereogenic centers, a basic quinuclidine nitrogen, a...
Allylsilylation
An Allylsilylation is performed between allylsilanes and aldehydes furnishes homo allyl alcohols. Using Cinchona...
Bargellini Reaction
The original reaction (1906) was a mixture of the reagents phenol, chloroform, and acetone in the presence of a sodium...
Nobel Prize in Chemistry 2001
The Nobel Prize in Chemistry 2001 was divided, one half jointly to William S. Knowles and Ryoji Noyori "for their work...
Nobel Prize in Chemistry 2021
The Nobel Prize in Chemistry 2021 was awarded jointly to Benjamin List and David W.C. MacMillan "for the development...
Specific Optical Rotation
Specific Optical Rotation gives the angle of rotation of plane-polarized light by a certain compound at a certain...
Optical Rotation
Optical Rotation is the property displayed by chiral substances of rotating the plane of polarisation of polarised...
Nazarov Cyclization
Nazarov Cyclization is one of the most versatile methods for the synthesis of cyclopentenones from vinyl ketones. For...
diastereomeric ratio
The diastereomeric ratio (dr) of the percent of one diastereomer in a mixture to that of the other diastereomer. For...
diastereomeric excess
The diastereomeric excess (de) reflects the degree to which a sample contains one diastereomer in greater amounts than...
enantiomeric ratio
The ratio of the percent of one enantiomer in a mixture to that of the other. Enantiomeric ratio of 7:3 means for...
enantiomeric excess
Enantiomeric excess is a measurement of purity used for chiral substances. It reflects the degree to which a sample...
Chiral Screening Kit
The Buchler chiral screening kit contains a set of slightly different Cinchona alkaloids in very high chemical purity....
Thorpe–Ziegler Reaction
Thorpe–Ziegler reaction is the intramolecular modification with a dinitrile as a reactant and a cyclic ketone as the...
Strecker Synthesis
The Strecker amino acid synthesis, also known simply as the Strecker synthesis, is a method for the synthesis of amino...
Sonogashira Coupling
The Sonogashira Reaction is a cross-coupling reaction used in organic synthesis to form carbon–carbon bonds. It...
Reformatsky Reaction
Reformatsky Reaction is an organic reaction which condenses aldehydes or ketones with α-halo esters using metallic...