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
R
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.
一种有效合成式I:1的磺酰基
吡唑的方法,其中式中的环(R5)-A-(SOmR4),m,R1至R9如规范中定义,包括在存在
氟化盐和溶剂的条件下,将式II的化合物与R3-H的化合物反应,其中式中的环(R5)-A-(SOmR4),m,R1至R9如上所述,而R10为卤素,(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-基团的每个碳原子上均可选择地被一个到六个
氟取代基取代。