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2004
Oxazine derivatives
R 0595
The Preparation and Alkylation of a Butanedione-Derived Chiral Glycine Equivalent and Its Use for the Synthesis of α-Amino Acids and α,α-Disubstituted Amino
50- 131 Acids.
— The new chiral glycine equivalent (IX) is prepared from the glycidol (I). It
undergoes monoalkylation with good diastereoselectivity. Dialkylation proceeds with
complete stereocontrol. The resulting products smoothly undergo ring opening without
racemization giving α-substituted and α,α-disubstituted amino acid derivatives, respectively. — (HARDING, C. I.; DIXON, D. J.; LEY*, S. V.; Tetrahedron 60 (2004)
35, 7679-7692; Dep. Chem., Univ. Cambridge, Cambridge CB2 1EW, UK; Eng.) —
Jannicke
2004
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