| abstract |
An efficient synthesis of sulfonyl pyrazoles of formula I:wherein the ring of the formula (R<5>)-A-(SOmR<4>), m, R<1 >through R<9 >are as defined in the specification, comprising reacting a compound of formula II:wherein the ring of the formula (R<5>)-A-(SOmR<4>), m R<1 >through R<9 >are as defined above and wherein R<10 >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 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. |