Imperial Chemical Industries Limited

Ann Mary Cole

Brian K Snell

John Angus Turner

Pyrimidine derivatives are provided wherein the 6-position carries the group OSO.sub.2 NR.sup.5 R.sup.6 and the 2-position carries the group NR.sup.1 R.sup.2. R.sup.1 and R.sup.2 are preferably hydrogen or lower alkyl but both are not hydrogen and R.sup.5 and R.sup.6 are preferably lower alkyl, although these groups may form a cyclic ring. The 3-position and 4-position are preferably substituted with lower alkyl, although lower alkynyl or alkenyl may be used. The derivatives are compounded into compositions for combatting fungal pests.

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Maidenhead, United Kingdom

Ann Mary Cole