Abstract: A compound of formula (I): ##STR1## or a salt, enamine or the like, acylate, sulphonate, carbamate or ether derivative thereof; wherein X, X.sup.1 and X.sup.2 are independently oxygen or sulphur, R.sup.1 is an optionally substituted heterocyclic or cycloalkyl group, and Y is an optionally substituted C.sub.2 -C.sub.4 alkylene group which is optionally interposed by an oxygen atom, a group ##STR2## or an optionally mono-substituted nitrogen atom, wherein p is 0, 1 or 2, s is 0 or 1 and R.sup.b is alkyl or alkoxy; provided that when X, X.sup.1 and X.sup.2 are oxygen, R.sup.1 is not pyridyl or pyrimidinyl. Processes for the preparation of these compounds and herbicidal compositions containing them are also described and claimed.

Abstract: A herbicidal compound of formula (I) ##STR1## or a salt, tautomer or cyclic derivative thereof; where R.sup.1 and R.sup.2 are hydrogen and A is an optionally substituted saturated or unsaturated chain or ring of three carbon atoms.Methods for preparing these compounds, intermediates used in the preparation and herbicidal compositions containing them are also described and claimed.

Abstract: A compound of formula (I): ##STR1## or a salt, enamine or the like, acylate, sulphonate, carbamate or ether derivative thereof; wherein X, X.sup.1 and X.sup.2 are independently oxygen or sulphur, R.sup.1 is an optionally substituted heterocyclic or cycloalkyl group, and Y is an optionally substituted C.sub.2 -C.sub.4 alkylene group which is optionally interposed by an oxygen atom, a group ##STR2## or an optionally mono-substituted nitrogen atom, wherein p is 0, 1 or 2, s is 0 or 1 and R.sup.b is alkyl or alkoxy; provided that when X, X.sup.1 and X.sup.2 are oxygen R.sup.1 is not pyridyl or pyrimidinyl. Processes for the preparation of these compounds and herbicidal compositions containing them are also described and claimed.

Abstract: A compound of formula (I): ##STR1## or a salt, enamine or the like, acylate, sulphonate, carbamate or ether derivative thereof; wherein X, X.sup.1 and X.sup.2 are independently oxygen or sulphur, R.sup.1 is an optionally substituted heterocyclic or cycloalkyl group, and Y is an optionally substituted C.sub.2 -C.sub.4 alkylene group which is optionally interposed by an oxygen atom, a group>S(O).sub.pa group ##STR2## or an optionally mono-substituted nitrogen atom, wherein p is O, 1 or 2, s is 0.sub.1 or 1 and R.sup.b is alkyl or alkoxy; provided that when X, X.sup.1 and X.sup.2 are oxygen, R.sup.1 is not pyridyl or pyrimidinyl. Processes for the preparation of these compounds and herbicidal compositions containing them are also described and claimed.

Abstract: Diphenyl ethers of formula: ##STR1## wherein A is hydrogen or one of a specified range of substituents e.g. halogen, hydroxy, haloalkyl, B, C, E and F are hydrogen or specified substituents; D is CF.sub.3, halogen, or an other specified substituent; and R is a group --CONR.sup.4 SO.sub.2 R.sup.3 wherein R.sup.4 is hydrogen or C.sub.1 to C.sub.4 alkyl and R.sup.3 is an optionally substituted alkyl, alkenyl, alkynyl, or aryl radical; useful as selective herbicides.

Abstract: The purpose of this monitor is to detect a failure in either the computer or the monitor itself. The computer supplies an output to the monitor which toggles at a preselected first frequency. The monitor includes a mechanism for sensing if the output of the computer is toggling at a frequency outside a preselected range of frequencies. A test circuit generates periodic test pulses and a clock circuit generates timing pulses. A latching mechanism changes from a first state to a second state in response to the sensing mechanism sensing that the first frequency of the computer is outside said preselected range. A bistable mechanism is coupled to the latching mechanism and generates a second frequency only if the latch mechanism is in its first state and if the test pulses and timing pulses are present at the bistable mechanism. The failure of the monitor to generate the second frequency indicates a failure of the computer or the monitor.

Abstract: Diphenyl ethers of formula: ##STR1## wherein A is hydrogen or one of a specified range of substituents e.g. halogen, hydroxy, haloalkyl, B, C, E and F are hydrogen or specified substituents; D is CF.sub.3, halogen, or another specified substituent; and R is a group --CONR.sup.4 SO.sub.2 R.sup.3 wherein R.sup.4 is hydrogen or C.sub.1 to C.sub.4 alkyl and R.sup.3 is an optionally substituted alkyl, alkenyl, alkynyl, or aryl radical; useful as selective herbicides.

Abstract: This invention relates to substituted phosphonic acid derivatives, and to their use as herbicides.

Abstract: An improved system and method is disclosed for compounding batches of a plurality of constituents in accordance with a predetermined formula. The individual batch constituents are sequentially fed into a batch receiving hopper. Feeding of each constituent is controlled in response to the current weight of the constituent in the hopper and the current rate at which the constituent is being fed. Preferably, feeding is accomplished at a plurality of decreasing rates with the fastest rate maintained for a maximum time to minimize the total time required to compound the batch.

Abstract: Furo [2,3-d] pyrimidine derivatives having the formula: ##STR1## wherein R is alkyl or aralkyl either optionally substituted; R.sub.2 is hydrogen or alkyl; R.sub.3 is hydrogen or alkyl; and salts thereof; and optical isomers thereof.

Abstract: A process for combating pests, especially fungi, which comprises applying to plants, seeds, or their loci, an isoxazolo [5,4-d] pyrimidine derivative having the formula: ##STR1## or a salt or optical isomer thereof, wherein R is alkyl or aralkyl, either optionally-substituted; R.sub.2 is hydrogen or alkyl; R.sub.3 is alkyl, aryl, alkylthio, alkanesulphonyl, alkoxy, aryloxy, cyano or optionally-substituted amino.

Abstract: Thienopyrimidines of the formula: ##STR1## wherein R.sup.1 is straight or branched chain alkyl containing from 3 to 11 carbon atoms and optionally substituted with cyano or methoxy, cycloalkyl, benzyl optionally substituted on the .alpha. carbon atom with a lower alkyl group or in the ring with one or more alkoxy groups or halogen atoms, dimethylamino, phenylethyl optionally substituted at the .alpha.- or .beta.-carbon atoms with a lower alkyl group, tetrahydrofurfuryl; R.sup.3 is hydrogen or NH.sub.2 ; or R.sup.1 and R.sup.3 together form a carbon chain bridging group optionally saturated and containing one or more nitrogen atoms; R.sup.2 is hydrogen, methyl, ethyl, or chlorine; R.sup.5 is hydrogen or methyl; and R.sup.6 is hydrogen, methyl or acetylamino; or an optical isomer thereof; or a tautomer thereof; or a salt thereof. These and other thienopyrimidines are disclosed as useful for plant growth regulation and for combating fungal, viral and bacterial diseases of plants and insect pests.