Abstract: A process for the preparation of a compound of formula (I), the process comprising: (i) the reaction of a compound of formula (III), with a compound of formula (IV) to give a compound of formula (II), and (ii) the reaction of the compound of formula (II) with a leaving group, to give the compound of formula (I).

Abstract: A process for the preparation of a compound of formula (I) wherein: R is an alkynyl group; R1 is alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkyl-alkyl, phenyl and phenylalkyl, it being possible in turn for all of the receding groups to carry one or more identical or different halogen atoms; alkoxy; alkenyloxy; alkynyloxy; alkoxyalkyl; haloalkoxy; alkylthio; haloalkylthio; alkysulfonyl; formyl; alkanoyl; hydroxy; halogen; cyano; nitro; amino; alkylamino; dialkylamino; carboxyl; alkoxycarbonyl; alkenyloxycarbonyl; or alkynyloxycarbonyl; and n is an integer from 0 to 3, said process comprising: (i) the reaction of a compound of formula (III) wherein R, R1 and n are as hereinbefore defined; m and m? are independently 0 or 1; when m and m? are both 0, A is an alkyl, alkenyl or alkynyl group (suitably having up to eight carbon atoms), optionally substituted by one or more groups independently selected from halogen, hydroxy, alkoxy, C1-4 dialkylamino or cyano; when one of m and m? is 0 and the other is 1, A is an al

Abstract: There is described a process for the preparation of a compound of formula I ##STR1## in which process: a) a compound of formula II ##STR2## is reacted with an organolithium compound of formula IIILi--R.sub.7 (III)b) the resulting lithium complex is reacted with a compound of formula IVY.sub.1 --CO--CO--Y.sub.1 IVto form a compound of formula V ##STR3## c) that compound is, in either order, c1) oximated with O-methylhydroxylamine; or oximated with hydroxylamine and then methylated or fluoromethylated or difluoromethylated;c2) reacted with a chloroformic acid ester.X, m, Y, R.sub.1 to R.sub.3 and R.sub.7 are as defined in the description.

Abstract: There is described a process for the preparation of a compound of formula I ##STR1## in which process: a) a compound of formula II ##STR2## is reacted with an organolithium compound of formula IIILi--R.sub.7 (III)b) the resulting lithium complex is reacted with a compound of formula IVY.sub.1 --CO--CO--Y.sub.1 IVto form a compound of formula V ##STR3## c) that compound is, in either order, c1) oximated with O-methylhydroxylamine; or oximated with hydroxylamine and then methylated or fluoromethylated or difluoromethylated;c2) reacted with a chloroformic acid ester.X, m, Y, R.sub.1 to R.sub.3 and R.sub.7 are as defined in the description.

Abstract: The present invention relates to the novel use of antidotes of formula I ##STR1## wherein R.sup.1 is C.sub.1 -C.sub.6 alkyl or C.sub.3 -C.sub.6 cycloalkyl, and each of R.sup.2 and R.sup.3, independently of the other, is hydrogen, C.sub.1 -C.sub.3 alkyl, trifluoromethyl or cyclopropyl, with the proviso that only one of the symbols R.sup.2 and R.sup.3 may be hydrogen, for protecting cultivated plants from the phytotoxic action of herbicides. The invention relates also to novel compounds and the preparation thereof and to novel intermediates and the preparation thereof. The invention further relates to herbicidal compositions that contain a combination of herbicide and antidote and to corresponding methods of controlling weeds. Finally, the invention relates also to the seeds of cultivated plants protected by the treatment with the antidote.

Abstract: O-substituted hydroxylamines of the formula IH.sub.2 NOR.sub.1 (I)in whichR.sub.1 is C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 haloalkyl, --CH.sub.2 CR.sub.2 .dbd.CR.sub.3 R.sub.4 or --CH.sub.2 C.tbd.CR.sub.5 ;R.sub.2 is hydrogen, halogen or methyl;R.sub.3 is hydrogen, halogen or methyl;lR.sub.4 is hydrogen, halogen or methyl; andR.sub.5 is hydrogen, methyl or ethyl,R.sub.6 --CN (II)in which R.sub.6 is C.sub.1 -C.sub.4 alkyl, phenyl or benzyl, is reacted with an alcohol of the formula IIIR.sub.7 --OH (III)in which R.sub.7 is C.sub.1 -C.sub.5 alkyl, benzyl or C.sub.1 -C.sub.4 alkoxyethyl, in an organic solvent which is only sparingly miscible with water or not at all, in the presence of hydrogen halide HX, the suspension obtained of the iminoester hydrohalide of the formula IV ##STR1## in which R.sub.6 and R.sub.7 are as defined above and X is chlorine, bromine or iodine, is added at a controlled rate to an aqueous suspension of a carbonate or hydrogen carbonate at a temperature of from -3.degree. to +5.degree.

Abstract: The present invention relates to the novel use of antidotes of formula I ##STR1## wherein R.sup.1 is C.sub.1 -C.sub.6 alkyl or C.sub.3 -C.sub.6 cycloalkyl, and each of R.sup.2 and R.sup.3, independently of the other, is hydrogen, C.sub.1 -C.sub.3 alkyl, trifluoromethyl or cyclopropyl, with the proviso that only one of the symbols R.sup.2 and R.sup.3 may be hydrogen, for protecting cultivated plants from the phytotoxic action of herbicides. The invention relates also to novel compounds and the preparation thereof and to novel intermediates and the preparation thereof. The invention further relates to herbicidal composition that contain a combination of herbicide and antidote and to corresponding method of controlling weeds. Finally, the invention relates also to the seeds of cultivated plants protected by the treatment with the antidote.

Abstract: Imidazole derivatives of formula I ##STR1## and stereochemically isomeric forms thereof, and their salts, have useful herbicidal properties. The substituents R.sup.1, L and X have the meanings defined herein.

Abstract: O-substituted hydroxylamines of the formula IH.sub.2 NOR.sub.1 (I)in whichR.sub.1 is C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 haloakyl, --CH.sub.2 CR.sub.2 .dbd.CR.sub.3 R.sub.4 or --CH.sub.2 C.tbd.CR.sub.5 ;R.sub.2 is hydrogen, halogen or methyl;R.sub.3 is hydrogen, halogen or methyl;R.sub.4 is hydrogen, halogen or methyl; andR.sub.5 is hydrogen, methyl or ethyl,are prepared by reacting a nitrile of the formula IIR.sub.6 --CN (II)in which R.sub.6 is C.sub.1 -C.sub.4 alkyl, phenyl or benzyl, is reacted with an alcohol of the formula IIIR.sub.7 --OH (III)in which R.sub.7 is C.sub.1 -C.sub.5 alkyl, benzyl or C.sub.1 -C.sub.4 alkoxyethyl, in an organic solvent which is only sparingly miscible with water or not at all, in the presence of hydrogen halide HX, the suspension obtained of the iminoester hydrohalide of the formula IV ##STR1## in which R.sub.6 and R.sub.

Abstract: Novel substituted N-sulfonyl-N'-pyrimidinylureas or N-sulfonyl-N'-triazinylureas of the formula I ##STR1## have good pre- and postemergence selective herbicidal and growth regulating properties.In this formulaE is nitrogen or --CH.dbd.,the group ##STR2## is a phenyl, naphthyl, furyl, thiophenyl, pyrrole or pyridinyl radical which is substituted in accordance with the definitions ofR.sup.1 and R.sup.2,R.sup.3 and R.sup.4 are hydrogen, lower alkyl or lower alkoxy, or one of R.sup.3 and R.sup.4 may also be halogen, lower alkenyl, lower haloalkenyl, lower haloalkoxy, amino, lower alkylamino, --CH(OCH.sub.3).sub.2, a cyclized ketal group or a saturated 5- or 7-membered heterocycle which is bound through the nitrogen atom,R.sup.5 is hydrogen, lower alkyl, lower haloalkyl, or an unsubstituted or substituted phenyl, benzyl or naphthyl radical, andR.sup.

Abstract: Imidazole derivatives of formula I ##STR1## and the stereochemically isomeric forms thereof, and salts thereof, have useful herbicidal properties. The substituents R.sup.1, L and X have the meanings defined herein.

Abstract: Novel substituted N-sulfonyl-N'-pyrimidinylureas or N-sulfonyl-N'-triazinylureas of the formula I ##STR1## have good pre- and postemergence selective herbicidal and growth regulating properties.In this formulaE is nitrogen or --CH.dbd.,the group ##STR2## is a phenyl, naphthyl, furyl, thiophenyl, pyrrole or pyridinyl radical which is substituted in accordance with the definitions of R.sup.1 and R.sup.2,R.sup.3 and R.sup.4 are hydrogen, lower alkyl or lower alkoxy, or one of R.sup.3 and R.sup.4 may also be halogen, lower alkenyl, lower haloalkenyl, lower haloalkoxy, amino, lower alkylamino, --CH(OCH.sub.3).sub.2, a cyclized ketal group or a saturated 5- to 7-membered heterocycle which is bound through the nitrogen atom,R.sup.5 is hydrogen, lower alkyl, lower haloalkyl, or an unsubstituted or substituted phenyl, benzyl or naphthyl radical, andR.sup.

Abstract: Novel substituted N-sulfonyl-N'-pyrimidinylureas or N-sulfonyl-N'-triazinylureas of the formula I ##STR1## have good pre- and postemergence selective herbicidal and growth regulating properties.In this formula E is nitrogen or --CH.dbd., the group ##STR2## is a phenyl, naphthyl, furyl, thiophenyl, pyrrole or pyridinyl radical which is substituted in accordance with the definitions ofR.sup.1 and R.sup.2,R.sup.3 and R.sup.4 are hydrogen, lower alkyl or lower alkoxy, or one of R.sup.3 and R.sup.4 may also be halogen, lower alkenyl, lower haloalkenyl, lower haloalkoxy, amino, lower alkylamino, --CH(OCH.sub.3).sub.2, a cyclised ketal group or a saturated 5- to 7-membered heterocycle which is bound through the nitrogen atom,R.sup.5 is hydrogen, lower alkyl, lower haloalkyl, or an unsubstituted or substituted phenyl, benzyl or naphthyl radical, andR.sup.

Abstract: A guide for mineral winning machines is composed of assemblies secured to the mineral face side of a conveyor. The assemblies have angle plates secured to the side walls of the conveyor pans and structures, integral or otherwise, which provide spacers at least partly defining elongate upper and lower passages for accomodating a drive chain. Covers are detachably and pivotably mounted to the structures to close off the upper passage. The covers are provided with substantial flat upper surfaces which serves to support and guide a machine. An upper guide rail formed by ribs at the edges of the upper surfaces and a lower guide rail formed by webs or web plates on the structures serve to locate with guide means of a plough supported on the inclined walls of the angle plates and driven by the drive chain. Where the flat support surfaces are not needed, or otherwise in case of need, the covers can be removed or replaced by covers of different design.

Abstract: A conveyor and guide assembly comprises a conveyor and a plough guide attached to one side of the conveyor. The conveyor comprises a plurality of conveyor sections joined end-to-end, and the guide comprises a plurality of guide sections positioned end-to-end. Each guide section is associated with, and extends substantially along, a corresponding conveyor section. The guide section has a generally L-shaped guide plate and a ramp-like cover plate which define therebetween upper and lower chain ducts for receiving a plough drive chain. Each section of the cover plate is curved over at the top towards the guide plate thereby delimiting the upper portion of the upper chain duct. Each adjacent pair of cover plate sections overlap in a first zone which extends over at least the curved-over portions thereof. Each pair of adjacent sections of the guide plate overlap in a second zone which adjoins said first zone.

Abstract: In gamma balancing several color camera channels, a test signal replaces the normal signal from the pick-up tube and the resulting gamma-corrected signals in the channels are compared. Differences noted in the comparison are used to adjust the gamma correction stages in all but one of the channels.

Abstract: A mining installation has a scraper-chain conveyor for transferring material and which is constructed in known manner from a series of channel sections joined end-to-end. A shifting apparatus serves to bodily displace the conveyor in a longitudinal direction and the connveyor is reinforced by means of L-shaped stiffening members attached to the exteriors of the side walls of the channel sections. These stiffening members or plates are interconnected by means of coupling plates which permit pivotal movement in a vertical plane as well as some free horizontal movement. The upper sides of the stiffening plates extend over the side walls of the channel sections and are provided or formed with webs or the like for the reception and connection of further barrier plates and their supports for example.

Abstract: A portable battery operated color television camera is provided with a switch system for use to preserve power while testing the camera and associated equipment or while engaged in standby operation. The switch system removes the power from two of the three pickup tubes in the camera, thereby reducing power consumption while allowing testing or standby operation in a black-and-white mode.