J. Carretero, N. Diaz, J. Rojo
Sep 12, 1994
Citations
0
Influential Citations
6
Citations
Journal
Tetrahedron Letters
Abstract
Abstract A one-step synthesis of differently substituted 1,6-dioxaspiro[4,5]decanes from readily available starting materials is described. The process is based on the condensation of the α-anion derived from β-phenylsulfonyl dihydrofurans with γ-lactones. The spirocyclization occurs with high stereoselectivity at C-4, C-5 and C-9, but not at C-2.