会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明申请
    • METHOD OF PREPARING CHIRAL KETONES FROM ALDEHYDES
    • 从ALDEHYDES制备CHALALKETONES的方法
    • WO2013095301A1
    • 2013-06-27
    • PCT/SG2012/000474
    • 2012-12-13
    • NANYANG TECHNOLOGICAL UNIVERSITY
    • CHI, YongguiTIWARI, Bhoopendra
    • C07B41/06C07C225/14C07C225/16C07C221/00C07C205/44C07C205/02C07C201/12
    • C07C221/00C07B41/06C07C201/12C07C205/02C07C205/44C07C225/14C07C225/16
    • 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 C 1 -C 10 alkyl, substituted or unsubstituted C 2 -C 15 alkenyl, substituted or unsubstituted C 2 -C 15 alkynyl, substituted or unsubstituted C 3 -C 15 cycloalkyl, substituted or unsubstituted C 3 -C 15 cycloalkenyl, substituted or unsubstituted C 3 -C 15 heterocycloalkyl, substituted or unsubstituted C 3 -C 15 heterocycloalkenyl, substituted or unsubstituted C 6 -C 15 aryl, or substituted or unsubstituted C 6 -C 15 heteroaryl; and R' is H, a substituted or unsubstituted C 1 -C 10 alkyl, substituted or unsubstituted C 2 -C 15 alkenyl, substituted or unsubstituted C 2 -C 15 alkynyl, substituted or unsubstituted C 3 -C 15 cycloalkyl, substituted or unsubstituted C 3 -C 15 cycloalkenyl, substituted or unsubstituted C 3 -C 15 heterocycloalkyl, substituted or unsubstituted C 3 -C 15 heterocycloalkenyl, substituted or unsubstituted C 6 -C 15 aryl, or substituted or unsubstituted C 6 -C 15 heteroaryl.
    • 本发明涉及从相应的β-或γ-取代的醛制备手性α-或β-取代的酮的方法,其中酮具有式(I),(III)或(V),并且相应的醛具有 式(II),(IV)或(VI)的方法,包括在胺,氧和有机溶剂的存在下使式(II),(IV)或(VI)的醛反应,其中反应 在不存在金属基催化剂或金属基氧化剂的情况下进行,其中:R是H,取代或未取代的C 1 -C 10烷基,取代或未取代的C 2 -C 15烯基,取代或未取代的C 2 -C 15炔基, 取代或未取代的C 3 -C 15环烷基,取代或未取代的C 3 -C 15环烯基,取代或未取代的C 3 -C 15杂环烷基,取代或未取代的C 3 -C 15杂环烯基,取代或未取代的C 6 -C 15芳基或取代或未取代的C 6 -C 15杂芳基; 取代或未取代的C 1 -C 15烷基,取代或未取代的C 2 -C 15烯基,取代或未取代的C 2 -C 15炔基,取代或未取代的C 3 -C 15环烷基,取代或未取代的C 3 -C 15环烯基,取代或未取代的 C 3 -C 15杂环烷基,取代或未取代的C 3 -C 15杂环烯基,取代或未取代的C 6 -C 15芳基或取代或未取代的C 6 -C 15杂芳基。