Processes for the preparation of pesticidal compounds and novel intermediates thereof
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United States of America Patent
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Nov 2, 2004
Grant Date -
Sep 4, 2003
app pub date -
Apr 30, 2003
filing date -
Jun 9, 2000
priority date (Note) -
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Abstract
A process for the preparation of a compound of the formula (I): ##STR1## wherein R.sup.1 is CN or CSNH.sub.2 ; X is N or CR.sup.4 ; R.sup.2 and R.sup.4 are each independently hydrogen or chloro; R.sup.3 is halo, haloalkyl, haloalkoxy or --SF.sub.5 ; R.sup.5 and R.sup.6 are each independently alkyl and n is 0, 1 or 2; said process comprising reacting a compound of the formula (II): ##STR2## wherein the symbols are as defined above and W is H, with an alkylating agent of the formula (III): R.sup.6 --Y (III) wherein R.sup.6 is as defined above and Y is a leaving group. The process may also be conducted by reacting a compound of formula (II) initially with an inorganic salt or an organic base, and reacting the resultant salt of the compound of formula (II) with the alkylating agent.
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