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Asymmetric oxidopyrylium-alkene [5+2] cycloaddition: a divergent approach for the synthesis of enantiopure oxabicyclo[5.4.0]undecanes

2004; Elsevier BV; Volume: 60; Issue: 22 Linguagem: Inglês

10.1016/j.tet.2004.04.003

1464-5416

U. Murali Krishna, K. D. DEODHAR, Girish K. Trivedi,

Asymmetric Synthesis and Catalysis

A Chiron approach to the synthesis of enantiomeric oxabicyclic adducts 16 and 32 has been developed employing an intramolecular [5+2] cycloaddition of 3-oxidopyrylium with unsaturated sugars.