[EN] METHOD OF PREPARING CHIRAL KETONES FROM ALDEHYDES<br/>[FR] PROCÉDÉ DE PRÉPARATION DE CÉTONES CHIRALES À PARTIR D'ALDÉHYDES
申请人:UNIV NANYANG TECH
公开号:WO2013095301A1
公开(公告)日:2013-06-27
Present invention relates to a method of preparing a chiral α- or β-substituted ketone from the corresponding β- or γ-substituted aldehyde, wherein the ketone has formula (I), (III) or (V), and the corresponding aldehyde has formula (II), (IV) or (VI), respectively, the method comprising reacting the aldehyde of formula (II), (IV) or (VI) in the presence of an amine, oxygen and an organic solvent, wherein the reaction is carried out in the absence of a metal-based catalyst or a metal-based oxidant, wherein: R is H, a substituted or unsubstituted C1-C10 alkyl, substituted or unsubstituted C2-C15 alkenyl, substituted or unsubstituted C2-C15 alkynyl, substituted or unsubstituted C3-C15 cycloalkyl, substituted or unsubstituted C3-C15 cycloalkenyl, substituted or unsubstituted C3-C15 heterocycloalkyl, substituted or unsubstituted C3-C15 heterocycloalkenyl, substituted or unsubstituted C6-C15 aryl, or substituted or unsubstituted C6-C15 heteroaryl; and R' is H, a substituted or unsubstituted C1-C10 alkyl, substituted or unsubstituted C2-C15 alkenyl, substituted or unsubstituted C2-C15 alkynyl, substituted or unsubstituted C3-C15 cycloalkyl, substituted or unsubstituted C3-C15 cycloalkenyl, substituted or unsubstituted C3-C15 heterocycloalkyl, substituted or unsubstituted C3-C15 heterocycloalkenyl, substituted or unsubstituted C6-C15 aryl, or substituted or unsubstituted C6-C15 heteroaryl.
本发明涉及一种从相应的β-或γ-取代醛制备手性α-或β-取代酮的方法,其中酮具有式(I)、(III)或(V),相应的醛具有式(II)、(IV)或(VI),该方法包括在胺、氧和有机溶剂存在下反应式(II)、(IV)或(VI)的醛,其中反应在无金属催化剂或金属氧化剂存在下进行,其中:R为H、取代或未取代的C1-C10烷基、取代或未取代的C2-C15烯基、取代或未取代的C2-C15炔基、取代或未取代的C3-C15环烷基、取代或未取代的C3-C15环烯基、取代或未取代的C3-C15杂环烷基、取代或未取代的C3-C15杂环烯基、取代或未取代的C6-C15芳基或取代或未取代的C6-C15杂芳基;R'为H、取代或未取代的C1-C10烷基、取代或未取代的C2-C15烯基、取代或未取代的C2-C15炔基、取代或未取代的C3-C15环烷基、取代或未取代的C3-C15环烯基、取代或未取代的C3-C15杂环烷基、取代或未取代的C3-C15杂环烯基、取代或未取代的C6-C15芳基或取代或未取代的C6-C15杂芳基。