Process of severely damaging or killing unwanted plants with pyr

Details Process of severely damaging or killing unwanted plants with pyr Process of severely damaging or killing unwanted plants with pyr

1975-07-21

1978-09-26

Brust, Joseph Paul

Chemistry: fertilizers

Processes and products

Forms or conditioning

542400, 542429, 542458, 542468, 544122, 544253, 544320, 544321, 544323, 544325, 544330, A01N 922

Patent

active

041166744

ABSTRACT:
A process of severely damaging or killing unwanted plants, which comprises applying to the plants, or to the growth medium thereof, a herbicidally effective amount of pyrimidine compound of the formula: ##STR1## or a herbicidal acid addition salt thereof, wherein R.sup.1 is an alkyl radical of 1 to 6 carbon atoms, cycloalkyl or alkenyl; R is a hydrogen atom or an alkyl or alkenyl radical of from 1 to 12 carbon atoms, which may be substituted by a phenyl radical; or R.sup.1 and R taken together form a trimethylene or tetramethylene radical; X is either (a) an --NR.sup.3 R.sup.4 radical wherein each of the groups R.sup.2 and R.sup.4 is a hydrogen atom or an alkyl or alkenyl radical of 1 to 3 carbon atoms or cycloalkyl, or --NR.sup.3 R.sup.4 constitutes a pyrrolidinyl, piperidinyl or morpholinyl ring; or (b) a group --OR.sup.5 wherein R.sup.5 is an alkyl or alkenyl radical of 1 to 10 carbon atoms or cycloalkyl; and R.sup.6 and R.sup.7 each represent hydrogen or an alkyl or alkenyl radical of 1 to 8 carbon atoms, or cycloalkyl, or R.sup.6 and R.sup.7, taken together with the nitrogen atom to which they are attached constitute a pyrrolidinyl, piperidinyl, or morpholinyl ring; provided that R may be hydrogen only when X is an OR.sup.5 group.

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patent: 3284188 (1966-11-01), Amagasa et al.
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patent: 3624084 (1971-11-01), Mathieu
patent: 3705159 (1972-12-01), Schneider et al.
patent: 3845055 (1974-10-01), Hoegerle et al.
C.A., 82 (1975), 107423k, ECK et al.
C.A., 55 (1961), 2005d, Geigy.

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