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2005
Amino acids
U 0400
Enantiocontrolled Synthesis of α-Methyl Amino Acids via Bn2N-α-Methyl— The lactone (I) is regioselectively opened at the methylene carbon
22- 192 serine-β-lactone.
with alkyl, functionalized alkyl, alkene, and aryl Grignard-derived organocuprates.
α-Methyl amino acid building blocks are obtained in excellent yields. The regioselectivity in the reactions with arylmagnesium halides is improved by addition of TmsCl to
the reaction mixture. — (SMITH*, N. D.; WOHLRAB, A. M.; GOODMAN*, M.;
Org. Lett. 7 (2005) 2, 255-258; Dep. Chem., Univ. Calif., San Diego, La Jolla,
CA 92093, USA; Eng.) — Steudel
2005
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