Tetrahedron Letters p. 6917 - 6920 (1994)
Update date:2022-08-05
Topics:
Carretero, Juan C.
Diaz, Nuria
Rojo, Javier
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.
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