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Transamidation is a chemical reaction in which an amide reacts with an amine to generate a new amide: RC(O)NR' 2 + HNR" 2 → RC(O)NR" 2 + HNR' 2. The reaction is typically very slow, but it can be accelerated with Lewis acid [1] and organometallic catalysts. [2] Primary amides (RC(O)NH 2) are more amenable to this reaction.
In organic chemistry, transamidification is the process of exchanging the subunits of a peptide, amide or ester compound with another amine or fatty acid to produce a new amide or peptide. The process has been used for the production of emulsifiers and dispersing agents [ 1 ] and oil drilling fluids.
Transamination is mediated by several types of aminotransferase enzymes. An aminotransferase may be specific for an individual amino acid, or it may be able to process any member of a group of similar ones, for example the branched-chain amino acids, which comprises valine, isoleucine, and leucine.
Tris(2,2,2-trifluoroethyl) borate can be prepared by reaction of trifluoroethanol with boron trichloride, borane dimethylsulfide, boron tribromide, or boric anhydride.The latter is more convenient for larger scale preparations due to its low cost and ease of handling.
The Beckmann rearrangement, named after the German chemist Ernst Otto Beckmann (1853–1923), is a rearrangement of an oxime functional group to substituted amides. [1] [2] The rearrangement has also been successfully performed on haloimines and nitrones.
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Mechanism proposed for the ring-opening polymerization of caprolactone to polycaprolactone by TBD. [5] [6]As a strong base, TBD fully deprotonates most phenols, carboxylic acids, and some carbon acids. [7]
English: This is an illustration of the difference between generalized transduction, which is the process of transferring any bacterial gene to a second bacterium through a bacteriophage and specialized transduction, which is the process of moving restricted bacterial genes to a recipient bacterium. While generalized transduction can occur ...