Fmc Corporation

Mary E Brown

Walter H Yeager

Clinton J Peake

Thomas G Cullen

Robert N Henrie, Ii

John W Buser

This invention describes 2,4-diamino-5-iodopyrimidines II where R, R1, R2, and R3 are independently selected from hydrogen, alkyl, cycloalkyl, alkoxyalkyl, alkoxyalkoxyalkyl, and arylalkyl; or, R1 and R2, and R3 and R, each independently, when taken together with pentylene or 3-oxapentylene, form piperidine and morpholine ring systems respectively; and R4 is hydrogen or lower alkyl. These compounds are useful intermediates in the preparation of insecticides I where U is an optionally substituted alkenylene. ##STR1##

2,4-diamino-5-iodopyrimidines useful as pesticide intermediates

5-Substituted-2,4-diaminopyrimidines, and agriculturally acceptable salts thereof, when present in insecticidally or acaricidally effective amounts, and with a suitable agricultural carrier, are useful as active ingredients in novel insecticidal and acaricidal compositions. These pyrimidines may be represented by the following formula: ##STR1## wherein Ar is ##STR2## and wherein U is an alkenylene or alkynylene moiety, and R, R.sup.1, R.sup.2, R.sup.3, R.sup.4, V, W, X, Y, Z and n are as defined herein; also disclosed and claimed are novel intermediates thereof.

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Belle Mead, NJ, United States of America

Mary E Brown