Efficient synthesis of 5-heteroatom-containing -pyrazoles
    1.
    发明授权
    Efficient synthesis of 5-heteroatom-containing -pyrazoles 失效
    有效合成含有5-杂原子的吡唑

    公开(公告)号:US06794512B2

    公开(公告)日:2004-09-21

    申请号:US10285836

    申请日:2002-11-01

    IPC分类号: C07D23124

    摘要: An efficient synthesis of sulfonyl pyrazoles of formula I: wherein the ring of the formula (R5)-A-(SOmR4), m, R1 through R9 are as defined in the specification, comprising reacting a compound of formula II: wherein the ring of the formula (R5)-A-(SOmR4), m R1 through R9 are as defined above and wherein R10 is halo, (C1-C6)alkyl-SO3—, (C6-C10)aryl-SO3—, (C1-C6)alkyl-SO2—, or (C6-C10)aryl-SO2—; wherein each of said (C1-C6)alkyl component of said (C1-C6)alkyl-SO3— and (C1-C6)alkyl-SO2— radicals may optionally be substituted on any carbon atom by one to six fluoro substituents per (C1-C6)alkyl component; with a compound of formula R3—H, wherein R3 is as defined above, in the presence of a fluoride containing salt and in the presence of a solvent.

    摘要翻译: 式I的磺酰基吡唑的有效合成:其中式(R 5)-A-(SO m R 4),m,R 1至R 9的环如说明书中所定义, 包括使式II化合物反应:其中式(R 5)-A-(SO m R 4),m R 1至R 9的环如上所定义,其中R 10, 是(C 1 -C 6)烷基-SO 3 - ,(C 6 -C 10)芳基-SO 3 - ,(C 1 -C 6)烷基-SO 2 - 或(C 6 -C 10)芳基-SO 2 - 其中所述(C 1 -C 6)烷基-SO 3 - 和(C 1 -C 6)烷基-SO 2 - 基团的所述(C 1 -C 6)烷基组分中的每一个可任选地在任何碳原子上被1-6个氟取代基取代 -C 6)烷基组分; 与式R 3 -H的化合物,其中R 3如上所定义,在含氟化物盐的存在下和在溶剂存在下。