Asymmetric synthesis of a branched-chain analogue of azapyranoses from a 5-allylic derivative of 5-nitro-1,3-dioxane. Synthesis of (3 R ,4 S )-6,6-bis(hydroxymethyl)-3,4-dihydroxypiperidin-2-one
作者:Anna Budzińska、Wojciech Sas
DOI:10.1016/s0040-4039(00)01895-5
日期:2001.1
Methyl 4-(5-nitro-1,3-dioxaspiro[5.5]undecan-5-yl)but-2-enoate 2, obtained from the palladium(0)-catalyzedreaction of a salt of 5-nitro-1,3-dioxane 1 with methyl γ-bromocrotonate, was converted into the title piperidinone (ee 78%) in three steps.