3-ARYL PYRONE DERIVATIVES
    8.
    发明专利

    公开(公告)号:CZ174893A3

    公开(公告)日:1994-05-18

    申请号:CZ174893

    申请日:1993-08-25

    Applicant: BAYER AG

    Abstract: The invention relates to 3-arylpyrone derivatives of the general formula (I) in which A represents hydrogen, halogen, optionally substituted radicals from the series comprising alkyl, cycloalkyl, alkenyl, alkynyl, arylalkyl, aryl, hetarylalkyl and hetaryl, or the groups -COR , -COR2R , -CN, -CONR R , -SO2R and -P(O)(OR )(OR ) in which R and R independently of one another represent hydrogen or optionally substituted radicals from the series comprising alkyl, alkenyl, arylalkyl, aryl, hetarylalkyl and hetaryl or R and R together represent an optionally substituted alkylene group which can be interrupted by one or more hetero atoms; B represents hydrogen or optionally substituted radicals from the series comprising alkyl, cycloalkyl, alkenyl, alkynyl, arylalkyl, aryl, hetarylalkyl and hetaryl; A and B together form an optionally substituted alkylene or alkenylene group which can be interrupted by, or contain, one or more hetero atoms or hetero groups; X represents halogen, alkyl or alkoxy; Y represents hydrogen, halogen, alkyl, haloalkyl or alkoxy; Z represents hydrogen, halogen, alkyl or alkoxy; n represents an integer 1, 2 or 3; and G represents hydrogen, a metal ion equivalent and an ammonium ion or a group -COR -SO2-R and -CONR R , in which R represents optionally substituted radicals from the series comprising alkyl, alkenyl, alkoxyalkyl, polyalkoxyalkyl, alkylthioalkyl, or cycloalkyl, arylalkyl, aryl, hetarylalkyl, hetaryl, aryloxyalkyl and hetaryloxyalkyl, it being possible for each of the seven last-mentioned radicals to be interrupted by one or more hetero atoms; R represents optionally substituted radicals from the series comprising alkyl, alkenyl, alkoxyalkyl, polyalkoxyalkyl, aryl and arylalkyl; R , R and R independently of one another represent optionally substituted radicals from the series comprising alkyl, alkoxy, alkylthio, alkylamino, dialkylamino, alkenylthio, alkynylthio, cycloalkylthio, aryl, aryloxy and arylthio; R and R independently of one another represent hydrogen or optionally substituted radicals from the series comprising alkyl, alkenyl, alkoxy, cycloalkyl, alkoxyalkyl, aryl or arylalkyl, or together form an optionally substituted alkylene group which can be interrupted by one or more hetero atoms or hetero groups; L represents oxygen or sulphur; and M represents oxygen or sulphur, which can be used as pesticides.t

    10.
    发明专利
    未知

    公开(公告)号:DE4133516A1

    公开(公告)日:1993-04-15

    申请号:DE4133516

    申请日:1991-10-10

    Applicant: BAYER AG

    Abstract: It has been found that alkyl N-(hydroxyalkyl)carbamidates of the formula (I) … … in which R represents alkyl and R to R are identical or different and represent hydrogen or alkyl, or R and R together with the atoms to which they are bonded form an optionally alkyl-substituted monocyclic ring and n is 0 or 1, can be obtained in high purity and in very good space-time yields when amino alcohols of the formula (II) … … in which R to R and n have the abovementioned meaning, are reacted with chloroformic esters of the formula (III) … … in which R has the abovementioned meaning, at temperatures between 30 DEG C and 110 DEG C in the presence of aqueous alkali metal hydroxide solutions and, if appropriate, in the presence of an organic solvent. … The substances prepared according to the invention can be employed as active substances in insecticides and acaricides (cf. EP-A 289,842).

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