1339748 Pyrimidine derivatives IMPERIAL CHEMICAL INDUSTRIES Ltd 17 June 1971 [2 July 1970] 32098/70 Heading C2C Novel compounds of formula which may be converted into salts, enol ethers, enol esters or complexes, specifically of type where X, Y and Z which may be the same or different, are O or S and RSP1/SP, RSP2/SP and RSP3/SP are H or unsubstituted or substituted hydrocarbyl, are prepared by reacting with RSP3/SPCOOH in the presence of a condensing agent, e.g. POCl 3 . The products are pesticides.
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