Process for preparing insecticide

制备式(I)化合物的方法：∴其中R#+[1]代表卤素、卤代烷基、卤代烷氧基、R#+[4]S(O)#-[n]-或-SF#-[5]；R#+[2]代表氢原子或卤素；R#+[3]代表卤素；R#+[4]代表烷基或卤代烷基；n代表0、1或2；所述方法包括在抑制腐蚀的化合物存在下用三氟过乙酸氧化式(II)化合物，其中，R#+[1]、R#+[2]定义如上，W代表氮原子或-CR#+[3]。 A process for the preparation of a compound of formula (I) comprising oxidizing a compound of formula (II) with...

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Bibliographic Details
Main Author J.-L. CLAVEL,I. PELTA,S. LE BARS
Format Patent
LanguageChinese
English
Published 25.08.2004
Edition7
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
MEASURING
METALLURGY
ORGANIC CHEMISTRY
PHYSICS
TESTING
WEIGHING
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Summary:制备式(I)化合物的方法：∴其中R#+[1]代表卤素、卤代烷基、卤代烷氧基、R#+[4]S(O)#-[n]-或-SF#-[5]；R#+[2]代表氢原子或卤素；R#+[3]代表卤素；R#+[4]代表烷基或卤代烷基；n代表0、1或2；所述方法包括在抑制腐蚀的化合物存在下用三氟过乙酸氧化式(II)化合物，其中，R#+[1]、R#+[2]定义如上，W代表氮原子或-CR#+[3]。 A process for the preparation of a compound of formula (I) comprising oxidizing a compound of formula (II) with trifluoroperacetic acid in the presence of a corrosion inhibiting compound such as boric acid. Also, a process for preparing a compound of formula (II) by adding sulfur dioxide to a mixture of the corresponding disulfide, a formate salt, trifluoromethyl bromide and a polar solvent; and a process for preparing the disulfide comprising adding S2Cl2 to a solution, in an organic solvent, of the corresponding 4-unsubstituted pyrazole.
Bibliography:Application Number: CN19998006082