Abstract: Protected phosphine oxides of formula X are useful intermediates for the preparation of tertiary phosphine oxides and acylphosphine oxide photoinitiators.

Abstract: A process for the preparation of a protected phosphine oxide which comprises reacting a phosphinate ester having a protecting group on the phosphorus atom with an organomagnesium halide or an organolithium compound at a temperature of -70.degree. C. to 65.degree. C. Protected phosphine oxides so prepared are useful intermediates for the preparation of tertiary phosphine oxides and acylphosphine oxide photoinitiators.

Abstract: 3,5-Dihalogeno-1,2,6-thiadiazin-4-ones of the formula ##STR1## in which R.sub.1 and R.sub.2 independently of one another are chlorine, fluorine or bromine, in particular 3,5-dichloro-1,2,6-thiadiazin-4-one, are excellently suitable for use as biocides for the protection of industrial materials and for water systems, for example for wood, plastics, paints, oils, adhesives and industrial water circulation systems.

Abstract: Arylphenyl ether derivatives of the formula ##STR1## wherein Az is 1H-(1,2,4-triazolyl) or is 1-imidazolyl optionally substituted by alkyl,each of R.sub.a and R.sub.b is hydrogen, halogen, alkyl, alkoxy or nitro,Ar is phenyl or naphthyl, optionally substituted by halogen, alkyl, alkoxy, nitro or CF.sub.3,each of U and V, is alkyl optionally substituted by halogen or alkoxy, or together form an alkylene bridge ##STR2## wherein each of R.sub.1 and R.sub.2 is hydrogen, or alkyl optionally substituted by halogen; phenyl optionally substituted by halogen or alkyl; or --CH.sub.2 --Z--R.sub.7 in which Z is oxygen or sulfur, and R.sub.7 is hydrogen, alkyl optionally substituted by alkoxy, alkenyl, prop-2-ynyl, 3-halo-prop-2-ynyl, phenyl optionally substituted by halogen, alkyl, alkoxy, nitro or by CF.sub.3, benzyl optionally substituted by halogen, alkyl or by alkoxy,each of R.sub.3, R.sub.4 and R.sub.5 is hydrogen or alkyl, the total number of carbon atoms in R.sub.3, R.sub.4 and R.sub.5 not exceeding 6, andR.sub.

Abstract: Compounds of formula ##STR1## wherein: R.sub.1 is phenyl, naphthyl, phenyl substituted from one to five times by R.sub.6, or naphthyl substituted from one to five times by R.sub.6 ; R.sub.2 is C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkyl substituted at least once by halogen, C.sub.1 -C.sub.3 alkoxy and/or by C.sub.3 -C.sub.6 cycloalkyl, C.sub.3 -C.sub.6 cycloalkyl, C.sub.1 -C.sub.4 alkoxycarbonyl, phenyl, phenyl mono- to tri-substituted by halogen, C.sub.1 -C.sub.3 alkoxy and/or by C.sub.1 -C.sub.3 alkyl, benzyl, or benzyl mono- to tri-substituted by halogen, C.sub.1 -C.sub.3 alkoxy and/or by C.sub.1 -C.sub.3 alkyl; R.sub.3 is hydrogen, C.sub.1 -C.sub.6 alkyl or the radical CO-R.sub.7 ; R.sub.4 is C.sub.3 -C.sub.6 cycloalkyl, C.sub.3 -C.sub.6 cycloalkyl mono- to tri-substituted by halogen and/or by methyl, C.sub.1 -C.sub.4 alkyl substituted at least once by halogen, hydroxy and/or by cyano, C.sub.2 -C.sub.5 alkynyl, C.sub.1 -C.sub.4 alkylthio or the radical CH.sub.2 XR.sub.8 ; R.sub.5 is hydrogen, C.sub.

Abstract: Novel 1-phenoxyphenyl-1-triazolylmethyl-carbinols of formula I ##STR1## in which R.sub.1 is fluorine, chlorine or bromine and R.sub.2 is fluorine, chlorine, bromine or methyl,and the phytophysiologically tolerable acid addition salts thereof have excellent microbicidal, in particular phytofungicidal, properties. They can be used for controlling and/or preventing infections caused by microorganisms in useful plants. The preparation of these compounds and compositions containing them is described.

Abstract: 1-Aryl-2-naphthoylamines of formula I are described ##STR1## wherein R.sub.1 is halogen, nitro, cyano, C.sub.1 -C.sub.6 alkyl that is unsubstituted or mono- or poly-substituted by halogen and/or C.sub.1 -C.sub.3 alkoxy, or is C.sub.3 -C.sub.6 cycloalkyl, OR.sub.4, NR.sub.5 R.sub.6, CO2R.sub.5, CONR.sub.5 R.sub.6 or NHCOR.sub.7, or wherein two adjacent positions in the nucleus are bridged by a methylenedioxy or ethylenedioxy group that is unsubstituted or mono- or poly-substituted by fluorine, wherein further R.sub.4 is hydrogen or C.sub.1 -C.sub.6 alkyl that is unsubstituted or substituted by C.sub.1 -C.sub.3 alkoxy or mono- or poly-substituted by halogen, or is C.sub.3 -C.sub.4 alkenyl, 2-propynyl, 3-halo-2-propynyl, ##STR2## or COR.sub.7, each of R.sub.5 and R.sub.6, independently of the other, is H or C.sub.1 -C.sub.4 alkyl, R.sub.7 is C.sub.1 -C.sub.

Abstract: The described novel pyridine derivatives are those of the general formula I ##STR1## wherein R is hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.6 -cycloalkyl, phenyl, benzyl, phenyl substituted by C.sub.1 -C.sub.4 -alkyl, halogen, C.sub.1 -C.sub.4 -alkoxy, NO.sub.2 and/or CF.sub.3, or benzyl substituted by C.sub.1 -C.sub.4 -alkyl, halogen, C.sub.1 -C.sub.4 -alkoxy, NO.sub.2 and/or CF.sub.3,R.sub.1 and R.sub.2 independently of one another are each hydrogen, C.sub.1 -C.sub.4 -alkyl, halogen or C.sub.1 -C.sub.4 -alkoxy,R.sub.3, R.sub.4 and R.sub.5 independently of one another are each hydrogen, halogen, CF.sub.3, NO.sub.2, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, phenyl, or phenyl substituted by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, NO.sub.2 and/or CF.sub.3,U and V independently of one another are each C.sub.1 -C.sub.6 -alkyl, or alkyl substituted by halogen or C.sub.1 -C.sub.4 -alkoxy, or together form one of the following alkylene bridges: ##STR2## R.sub.a is hydrogen, C.

Abstract: The invention discloses novel N-(2-nitrophenyl)-2-aminopyrimidine derivatives of the general formula I ##STR1## wherein R.sub.1 and R.sub.2 are hydrogen, NO.sub.2 or CF.sub.3, with the proviso that only R.sub.1 or R.sub.2 can be NO.sub.2 ;R.sub.4 is hydrogen or the --C(O)R' group, in which R' is C.sub.1 -C.sub.4 alkyl which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.3 alkoxy or C.sub.1 -C.sub.3 alkylthio;R.sub.5, R.sub.6 and R.sub.7 are each independently halogen, nitro, cyano, thiocyano, C.sub.1 -C.sub.12 alkyl, C.sub.3 -C.sub.8 cycloalkyl, C.sub.1 -C.sub.8 alkylthio, C.sub.1 -C.sub.6 alkylsulfonyl, C.sub.1 -C.sub.6 alkylsulfoxyl, C.sub.3 -C.sub.6 alkenyl, C.sub.3 -C.sub.6 haloalkenyl, C.sub.3 -C.sub.6 alkynyl, C.sub.3 -C.sub.6 haloalkynyl, C.sub.3 -C.sub.6 alkenyloxy, C.sub.3 -C.sub.6 haloalkenyloxy, C.sub.3 -C.sub.6 alkenylthio, C.sub.3 -C.sub.6 alkynyloxy, C.sub.3 -C.sub.6 haloalkynyloxy, C.sub.1 -C.sub.8 alkyl which is substituted by halogen, cyano and/or C.sub.1 -C.sub.

Abstract: The invention discloses novel N-(2-nitrophenyl)-2-aminopyrimidine derivatives of the general formula I ##STR1## wherein R.sub.1 and R.sub.2 are each independently NO.sub.2 or CF.sub.3, with the proviso that only R.sub.1 or R.sub.2 can be NO.sub.2R.sub.3 is halogen,R.sub.4 is hydrogen or the --C(O)R' group, in which R' is C.sub.1 -C.sub.4 alkyl which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.3 alkoxy or C.sub.1 -C.sub.3 alkylthio,R.sub.5, R.sub.6 and R.sub.7 are each independently hydrogen, halogen, nitro, cyano, thiocyano, C.sub.1 -C.sub.12 alkyl, C.sub.3 -C.sub.8 cycloalkyl, C.sub.1 -C.sub.8 alkylthio, C.sub.1 -C.sub.6 alkylsulfonyl, C.sub.1 -C.sub.6 alkylsulfoxyl, C.sub.3 -C.sub.6 alkenyl, C.sub.3 -C.sub.6 haloalkenyl, C.sub.3 -C.sub.6 alkynyl, C.sub.3 -C.sub.6 haloalkynyl, C.sub.3 -C.sub.6 alkenyloxy, C.sub.3 -C.sub.6 -haloalkenyloxy, C.sub.3 -C.sub.6 alkenylthio, C.sub.3 -C.sub.6 alkynyloxy, C.sub.3 -C.sub.6 haloalkynyloxy, C.sub.1 -C.sub.

Abstract: There are described novel organotin compounds of the formula I ##STR1## wherein R.sub.1 is unsubstituted or substituted lower alkyl, lower alkenyl, cycloalkyl, furyl or tetrahydrofuryl;R.sub.2 is unsubstituted or substituted aryl;R.sub.3 and R.sub.4 independently of one another are each hydrogen, or unsubstituted or substituted lower alkyl; andR.sub.5, R.sub.6 and R.sub.7 independently of one another are each unsubstituted or substituted lower alkyl, cycloalkyl or aryl.There are also disclosed methods of producing these products, and also pesticidal compositions containing one of the said compounds as active ingredient. Also described is a method for controlling plant pests, which method is based on the application of the stated active substances or of compositions prepared therefrom.

Abstract: Compounds of the formula ##STR1## in which Ar is 2-alkyl-, -alkoxy- or -halo-methyl-phenyl or .alpha.-naphthyl, each of which is further substituted,R.sub.1 is 2-furyl, 2-tetrahydrofuryl, alkenyl, cyclopropyl, .beta.-alkoxyethyl, hydroxymethyl, triazolylmethyl, imidazolylmethyl, pyrazolylmethyl, alkylsulfinyl, alkylsulfonyl, alkoxy, alkenyloxy, alkynyloxy, alkylthio, alkenylthio, alkynylthio, alkylsulfinyloxy, dialkylaminosulfinyloxy, phosphoric or thiophosphoric esters or amides, or alkylcarbonyloxy, andR.sub.9 is hydrogen or methyl,are microbicidally, in particular fungicidally active. The preferred compounds are those in which Ar is 2-methylphenyl, 2-methoxyphenyl, 2-chlorophenyl or .alpha.-naphthyl, each of which is further substituted by azido, and R.sub.9 is hydrogen.

Abstract: A description is given of new compounds of the formula defined herein: ##STR1## which display valuable microbicidal properties. The compounds can be used for combatting microorganisms harmful to plants, especially phytopathogenic fungi. The compounds of formula I thus possess a curative, systemic, and preventive action very useful for practical requirements for the protection of cultivated plants, without causing these to suffer any undesirable side effects. In practice, the compounds can be used by themselves or in the form of pesticides.

Abstract: Compounds of the formula ##STR1## in which Ar is 2-alkyl-, -alkoxy- or -halo-methyl-phenyl or .alpha.-naphthyl, each of which is further substituted,R.sub.1 is 2-furyl, 2-tetrahydrofuryl, alkenyl, cyclopropyl, .beta.-alkoxyethyl, hydroxymethyl, triazolylmethyl, imidazolylmethyl, pyrazolylmethyl, alkylsulfinyl, alkylsulfonyl, alkoxy, alkenyloxy, alkynyloxy, alkylthio, alkenylthio, alkynylthio, alkylsulfinyloxy, dialkylaminosulfinyloxy, phosphoric or thiophosphoric esters or amides, or alkylcarbonyloxy,R.sub.7 is hydrogen or optionally-substituted methyl or ethyl, andR.sub.8 is alkyl optionally substituted by alkoxy,are microbicidally, in particular fungicidally, active. Preferred compounds are those in which Ar is 2-methylphenyl, 2-methoxyphenyl, 2-chlorophenyl or .alpha.-naphthyl, each of which is further substituted by azido, and each of R.sub.7 and R.sub.8 is methyl.

Abstract: There are described novel homoserine derivatives of the formula (I) ##STR1## which possess valuable microbicidal properties. In the formula: Ar is substituted phenyl or naphthyl; R.sub.1 is C.sub.2 -C.sub.6 alkyl optionally interrupted by oxygen or sulfur, 2-furyl, 2-tetrahydrofuryl, 1H-1,2,4-triazolylmethyl, 1-imidazolylmethyl, 1-pyrazolylmethyl, C.sub.2 -C.sub.4 alkenyl or cyclopropyl, each of which is optionally substituted by halogen; R.sub.2 is hydrogen or methyl; R.sub.3 is hydrogen or C.sub.1 -C.sub.4 alkyl; and B is halogen or an ester, thioester, sulfonic acid ester or sulfonic acid amide group. Additionally, where B is halogen, R.sub.1 may be halomethyl. The novel derivatives can be used for combating microorganisms harmful to plants, particularly for combating phytopathogenic fungi, and they have for practical requirements a very favorable curative and protective action for protecting cultivating plants, without the plants being impaired as a result of undesirable secondary effects.

Abstract: The invention relates to novel microbicides of the general formula I ##STR1## wherein R is hydrogen or methyl, Ar is a phenyl or .alpha.-naphthyl group which is substituted by NH.sub.2 or NO.sub.2 and further radicals, W is a cyano, ester, alkenyl or alkynyl group, and B is alkyl, alkenyl, cyclopropyl, 2-furyl, 2-tetrahydrofuryl, .beta.-(alkoxy)ethyl, triazolylmethyl, methylsulfonylmethyl, alkoxymethyl, alkenyloxymethyl, alkynylmethyl, alkylthiomethyl, alkenylthiomethyl, alkynylthiomethyl, --OSO.sub.2 -alkyl, --OSO.sub.2 NH(alkyl) or --N(alkyl).sub.2. The invention also describes plant protection compositions which contain these compounds, a process for the production of the novel compounds and compositions, and a method of controlling phytopathogenic microorganisms which comprises the use thereof.

Abstract: There are described novel compounds of the formula I defined herein: ##STR1## which have valuable microbicidal properties. The novel compounds can be used for combating microorganisms harmful to plants, particularly for combating phytopathogenic fungi. The compounds of the formula I thus have a very favorable curative and preventive action for practical requirements for the protection of cultivated plants, without the plants being impaired as a result of undesirable secondary effects. The compounds can be used in practice on their own or in the form of pesticidal compositions.

Abstract: The invention relates to novel microbicides of the general formula I ##STR1## wherein R is hydrogen or methyl, Ar is a phenyl or .alpha.-naphthyl group which is substituted by NH.sub.2 or NO.sub.2 and further radicals, W is a cyano, ester, alkenyl or alkynyl group, and B is alkyl, alkenyl, cyclopropyl, 2-furyl, 2-tetrahydrofuryl, .beta.-(alkoxy)ethyl, triazolylmethyl, methylsulfonylmethyl, alkoxymethyl, alkenyloxymethyl, alkynyloxymethyl, alkylthiomethyl, alkenylthiomethyl, alkynylthiomethyl, --OSO.sub.2 -alkyl, --OSO.sub.2 NH(alkyl) or --N(alkyl).sub.2. The invention also describes plant protection compositions which contain these compounds, a process for the production of the novel compounds and compositions, and a method of controlling phytopathogenic microorganisms which comprises the use thereof.