| 摘要 |
<p>Processes for the Preparation of Pesticidal Compound a process (A) for the preparation of a compound of formula (I) <CHEM> wherein:R<1> is CN or CSNH2; X is N or CR<4>; R<2> and R<4> are, each, independently hydrogen or chlorine; R<3> is halogen, haloalkyl, haloalkoxy or -SF5; R<5> and R<6> are each independently an alkyl group; and n is 0, 1 or 2; which process comprises (a) a first step of reacting a compound of formula (II): <CHEM> wherein the various symbols are as defined above and W is H , with an inorganic metal salt or an organic base to produce an intermediate compound, (b) a second step of reacting the intermediate compound with an alkylating agent of formula (III): R<6>-Y wherein R<6> is as defined above and Y is a leaving group. The intermediate compounds are also claimed as novel compounds.</p> |
