摘要:
New pesticidal substituted biphenyloxazolines of the formula (I) in whichA, B, X, m and n have the meanings stated in the description, and new intermediates therefor.
摘要:
Novel substituted benzimidazoles of the formula ##STR1## in which Q, R, X and Z have the meanings given in the description,a process for the preparation of the novel substances and their use for combating pests.
摘要:
Novel benzimidazole derivatives of the formula ##STR1## R.sup.1, R.sup.2, X.sup.1, X.sup.2, X.sup.3, X.sup.4 and Y are each as defined in the description,and metal salt complexes thereof,a process for preparing these compounds and their use as microbicides in crop protection and in teh protection of materials.
摘要:
p-Haloalkoxyanilines are obtained from the corresponding nitrobenzenes by catalytic hydroxylation in the presence of an aqueous acidic reaction medium with the formation of a corresponding aminophenol and reaction of this aminophenol with a halogenated olefin in the presence of water and a catalytic amount of base.
摘要:
2-Trifluoromethoxy-aniline, which can be used as an intermediate for example for preparing pharmaceuticals and agrochemicals, is obtained in very good yields and high purity by nitrating in a first step 1,2-dichlorotrifluoromethoxy-benzene at temperatures between -20.degree. C. and +80.degree. C. and catalytically hydrogenating the resulting nitration products (exclusively 1,2-dichloro-5-nitro-4-trifluoromethoxy-benzene and 1,2-dichloro-3-nitro-4-trifluoromethoxy-benzene) in a 2nd step, it being possible to isolate the aniline intermediates corresponding to the two nitrobenzene derivatives; the nitrobenzene and aniline derivatives mentioned, being novel compounds, are also part of the subject matter of the invention.
摘要:
Polyhalogenated benzotrifluorides can be reacted with chlorides from the series of Friedel-Crafts catalysts to give the corresponding benzotrichlorides, which can be hydrolysed by water in the presence of iron(III) chloride to give the corresponding benzoyl chlorides. These are suitable as intermediate products for the preparation of active compounds for medicaments and feed additives.
摘要:
According to the invention, a new process has been found for the preparation of 2,2-difluoro-benzo[1,3]-dioxole-cabaldehydes of the formula (I) ##STR1## in which benzo[1,3]dioxole-carbaldehydes are chlorinated, the 2,2-dichloro-dichloromethylbenzo[1,3]dioxoles formed, which are likewise new, are partly fluorinated to give the 2,2-difluoro-dichloromethyl-benzo[1,3]dioxoles, which are likewise new, and these are then reacted with urotropin to give the desired compounds.
摘要:
1,1,1,4,4,4-hexafluoro-chlorobutenes are obtained by pyrolysis of 1,1,1-trifluoro-2,2-dichloroethane. The hexafluoro-chlorobutenes obtained in this way can be converted into hexafluorobutane, a CFC substitute, by hydrogenation.
摘要:
Novel fluorinated 1,3-benzo- and 1,3-pyrido-dioxoles of formula (I): ##STR1## in which A is C-R.sup.4 or N,X is hydrogen, fluorine, chlorine or bromine andR.sup.1 to R.sup.4 can be identical to or different from one another and are each hydrogen, halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, halogeno-C.sub.1 -C.sub.6 -alkyl, C.sub.6 -C.sub.10 -aryl, CHO, COOH, COCl, CN, OH, NCO, COO--C.sub.1 -C.sub.6 -alkyl, NO.sub.2, NH.sub.2, NH--C.sub.1 -C.sub.6 -alkyl, N(C.sub.1 -C.sub.6 -alkyl).sub.2, SO.sub.2 Cl, SO.sub.3 H, SO.sub.3 Na or SO.sub.3 K,it also being possible for two adjacent radicals from the series R.sup.1 to R.sup.4 together to be an optionally substituted --CH.dbd.CH--CH.dbd.CH-- bridge, processes for their preparation and their use for the preparation of plant protection agents.
摘要:
According to the invention, a new process has been found for the preparation of 2,2-difluoro-benzo[1,3]-dioxole-carbaldehydes of the formula (I) ##STR1## in which benzo[1,3]dioxole-carbaldehydes are chlorinated, the 2,2-dichloro-dichloromethylbenzo[1,3]dioxoles formed, which are likewise new, are partly fluorinated to give the 2,2-difluoro-dichloromethyl-benzo[1,3]dioxoles, which are likewise new, and these are then reacted with urotropin to give the desired compounds.