Use of ylides of phosphorus as slightly nuceophilic strong bases
    74.
    发明授权
    Use of ylides of phosphorus as slightly nuceophilic strong bases 失效
    使用磷酸内鎓盐作为微乳液的强碱

    公开(公告)号:US06222032B1

    公开(公告)日:2001-04-24

    申请号:US09423269

    申请日:1999-11-04

    IPC分类号: C07D24316

    摘要: In a process for C-alkylation or N-alkylation, the improvement comprising conducting the C-alkylation or N-alkylation reaction in the presence of a slightly nucleophilic strong base of the following formula wherein R′1, R′2 and R′3 are individually selected from the group consisting of alkoxy of 1 to 6 carbon atoms and R′ and R″ are individually selected from the group consisting of unsubstituted or substituted alkyl of 1 to 6 carbon atoms, alkoxy of 1 to 6 carbon atoms, cycloalkyl of 3 to 10 carbon atoms, aryl and aralkyl of 1 to 6 alkyl carbon atoms, the substituents being selected from the group consisting of halogen, alkyl of 1 to 6 carbon atoms, alkoxy of 1 to 6 carbon atoms, —CN, —NO2 and dialkylamino of 1 to 6 alkyl carbon atoms, the aryl being selected from the group consisting of unsaturated monocyclic and condensed carbocyclic and heterocyclic with at least one heteroatom selected from the group consisting of nitrogen, oxygen and sulfur, R′4 is selected from the group consisting of hydrogen, alkyl of 1 to 6 carbon atoms and alkoxy of 1 to 6 carbon atoms and R′5 is selected from the group consisting of hydrogen, alkyl of 1 to 6 carbon atoms, alkoxy of 1 to 6 carbon atoms and a polymeric support.

    摘要翻译: 在C-烷基化或N-烷基化方法中,包括在R'1,R'2和R'3的下列化学式的轻微亲核强碱存在下进行C-烷基化或N-烷基化反应的改进是 分别选自1至6个碳原子的烷氧基和R'和R“分别选自未取代或取代的1至6个碳原子的烷基,1至6个碳原子的烷氧基,3个环烷基 至10个碳原子,芳基和1至6个烷基碳原子的芳烷基,取代基选自卤素,1至6个碳原子的烷基,1至6个碳原子的烷氧基,-CN,-NO 2和二烷基氨基 1至6个烷基碳原子,芳基选自不饱和单环和稠合的碳环和杂环与至少一个选自氮,氧和硫的杂原子,R '4选自组 氢,1至6个碳原子的烷基和1至6个碳原子的烷氧基和R'5选自氢,1至6个碳原子的烷基,1至6个碳原子的烷氧基和聚合物 支持。