2,4-Diamo-5-(alkylsulfinyl) or alkylsulphonyl)-6-halopyrimidines

Details 2,4-Diamo-5-(alkylsulfinyl) or alkylsulphonyl)-6-halopyrimidines 2,4-Diamo-5-(alkylsulfinyl) or alkylsulphonyl)-6-halopyrimidines

1980-08-04

1985-12-24

Rizzo, Nicholas S.

Chemistry: fertilizers

Processes and products

Forms or conditioning

544298, 544322, C07D23924, A01N 4354

Patent

active

045604029

ABSTRACT:
The invention relates to novel 2,4-diamino-5-alkylsulfinyl- or -alkylsulfonyl-6-halopyrimidines of the formula ##STR1## wherein n is 1 or 2, R.sub.1 is C.sub.1 -C.sub.4 alkyl, each of R.sub.2 and R.sub.3 is hydrogen, C.sub.1 -C.sub.6 alkyl or C.sub.3 -C.sub.6 cycloalkyl and X is chlorine, bromine or fluorine. These compounds have selective herbicidal action and inhibit plant growth. They are obtained by amination of halogen-substituted or hydroxyl-substituted amino-5-alkylsulfinyl- and -sulfonylpyrimidines. The invention also relates to the production of 5-sulfinylpyrimidine intermediates.

REFERENCES:
patent: 3124447 (1964-03-01), Wineman et al.
patent: 3968214 (1976-07-01), Claverie et al.
patent: 4014677 (1977-03-01), Fischer
patent: 4082535 (1978-04-01), Hoegerle et al.
patent: 4412074 (1983-10-01), Hoegerle et al.

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