申请人:——
公开号:US20030139407A1
公开(公告)日:2003-07-24
An efficient synthesis of sulfonyl pyrazoles of formula I:
1
wherein the ring of the formula (R
5
)—A—(SO
m
R
4
), m, R
1
through R
9
are as defined in the specification, comprising reacting a compound of formula II:
2
wherein the ring of the formula (R
5
)—A—(SO
m
4
), m R
1
through R
9
are as defined above and wherein R
10
is halo, (C
1
-C
6
)alkyl-SO
3
—, (C
6
-C
10
)aryl-SO
3
—, (C
1
-C
6
)alkyl-SO
2
—, or (C
6
-C
10
)aryl-SO
2
—; wherein each of said (C
1
-C
6
)alkyl component of said (C
1
-C
6
)alkyl-SO
3
— and (C
1
-C
6
)alkyl-SO
2
— radicals may optionally be substituted on any carbon atom by one to six fluoro substituents per (C
1
-C
6
)alkyl component; with a compound of formula R
3
—H, wherein R
3
is as defined above, in the presence of a fluoride containing salt and in the presence of a solvent.
公式I:1中的磺酰吡唑的高效合成方法,其中公式(R5)-A-(SOmR4),m,R1到R9如规范中定义,包括在存在氟化物盐和溶剂的条件下,将公式II:2的化合物与公式R3-H的化合物反应,其中公式(R5)-A-(SOm4),m,R1到R9如上所定义,其中R10是卤素,(C1-C6)烷基-SO3-,(C6-C10)芳基-SO3-,(C1-C6)烷基-SO2-或(C6-C10)芳基-SO2-;其中所述(C1-C6)烷基-SO3-和(C1-C6)烷基-SO2-基团中的每个(C1-C6)烷基组分可以选择地在任何碳原子上被一个到六个氟代基取代。