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)-catalyzed reaction 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.
甲基-4-(5-硝基-1,3-二氧杂螺[5.5]十一烷-5-基)丁-2-烯酸乙酯2,从钯(0) -催化的5-硝基-1,3-盐的反应得到用三步法将带有γ-溴巴豆酸甲酯的β-二恶烷1转化为标题哌啶酮(ee 78%)。