Novel Synthesis of α-Amino Acids via Catalysis in Air and Water
摘要:
[GRAPHICS]A new method was developed for the synthesis of natural and unnatural amino acid derivatives via carbon-carbon bond formation in air and water and at ambient temperature.
Provided is a method for the alcoholysis of an amide. The method comprises subjecting an amide-containing compound to alcoholysis under alkaline conditions using an epoxy compound as an accelerant of alcoholysis.
A practical method for the removal of a versatile acidicamide auxiliary has been developed. Facile alcoholysis of the amide in the presence of KOAc is enabled by an epoxide, which mechanistically resembles the removal of the Myers’ auxiliary. The protocol has been applied to the removal of a variety of amide substrates and their C–H functionalization products with high efficiency and low cost, representing
Synthesis of Functionalised Phenylalanines Using Rhodium Catalysis in Water
作者:Christopher J. Chapman、Christopher G. Frost
DOI:10.1002/adsc.200390039
日期:2003.3
The efficient synthesis of substituted phenylalanine-type amino acids using a rhodium-catalysed, conjugate addition of arylboronic acids is described. The reactions are run in water and use a low loading (0.5 mol %) of rhodium catalyst.
Provided is a method for the alcoholysis of an amide. The method comprises subjecting an amide-containing compound to alcoholysis under alkaline conditions using an epoxy compound as an accelerant of alcoholysis, the method comprising: mixing the amide-containing compound, the epoxy compound, a pH adjuster and a solvent to form an alkaline reaction system, the pH of the alkaline reaction system being 7.5-9.5; reacting the alkaline reaction system at 50° C. ˜150° C. to subject the amide-containing compound to alcoholysis.