6278-95-1Relevant articles and documents
Enantioselective Synthesis of α-Quaternary Amino Acids by Alkylation of Deprotonated α-Aminonitriles
Netz, Isabelle,Kucukdisli, Murat,Opatz, Till
, p. 6864 - 6869 (2015/10/06)
A series of α-quaternary arylglycines were prepared in high optical purity (up to 98% ee) by α-alkylation of deprotonated α-aminonitriles derived by the Strecker reaction from (4S,5S)-5-amino-2,2-dimethyl-4-phenyl-1,3-dioxane. The procedure includes only chromatographic purification of the final products and is devoid of chromatography or crystallization operations on intermediates to raise the optical purity.
Asymmetric syntheses via heterocyclic intermediates. XVI. Enantioselective synthesis of alpha-alkyl-alpha-phenylglycines by alkylation of 3,6-dihydro-3-phenyl-2H-1,4-oxazin-2-ones chirally substituted at C-6
Hartwig,Schollkopf
, p. 1952 - 1970 (2007/10/02)
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