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2004
Cyclobutane derivatives
Q 0022
Synthesis of Enantiomerically Pure α-Amino-β-hydroxy-cyclobutanone Derivaand Their Transformations into Polyfunctional Three- and Five-Membered
49- 065 tives
Ring Compounds. — The oxazole derivatives (I) smoothly react with ketenes to afford
enantiomerically pure fused cyclobutanes. The cycloaddition proceeds with unusual regioselectivity yielding predominantly or exclusively α-amino-β-hydroxy derivatives.
The latter are of synthetic and biological interest and can smoothly be converted into
different compounds such as fused cyclopropanes, fused lactones, fused lactams, and
α-amino-β-hydroxy acids. — (GHOSEZ*, L.; YANG, G.; CAGNON, J. R.; LE
BIDEAU, F.; MARCHAND-BRYNAERT, J.; Tetrahedron 60 (2004) 35, 7591-7606;
Dep. Chim., Univ. Cathol. Louvain, B-1348 Louvain-la-Neuve, Belg.; Eng.) —
Jannicke
2004
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