摘要:
The present invention relates to new 3-aryl-4-hydroxy-.DELTA..sup.3 -dihydrofuranone derivatives of the formula (I) ##STR1## in which A and B together with the carbon atom to which they are bonded form an unsubstituted or substituted 5- to 7-membered ring which is interrupted by at least one hetero atom,X represents alkyl, halogen or alkoxy,Y represents hydrogen, alkyl, halogen, alkoxy or halogenoalkyl,Z represents alkyl, halogen or alkoxy,n represents a number 0, 1, 2 or 3,G represents hydrogen (a) or one of the groups ##STR2## E represents a metal ion equivalent or an ammonium ion, L represents oxygen or sulphur,M represents oxygen or sulphur andR.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 have the meanings given in the description, to processes for their preparation, and to their use as pesticides.
摘要:
1,2,3-Tricyanobenzene can be prepared in a good yield from fluorobenzonitriles by reaction with an alkali metal cyanide. This product can be converted into metal-free tetracyanophthalocyanines or into the corresponding metal complexes by tetramerisation, if appropriate in the presence of metals or metal compounds. These products are excellent organic pigments.
摘要:
Metal-free phthalocyanines in the .chi.-modification substituted in up to four ortho positions can be prepared by tetramerisation of a reaction mixture consisting of phthalonitriles substituted in the 3-position with phthalonitrile in a molar ratio of 4:0 to 1:40 in the presence of a base and subsequent heat treatment at temperatures of between 100.degree. and 300.degree. C. They constitute excellent organic pigments.
摘要:
The invention relates to new substituted 4,5-diamino-1,2,4-triazol-3-(thi)ones of the general formula (I), ##STR1## in which R.sup.1 represents alkyl, alkenyl, alkinyl, halogenoalkyl, halogenoalkenyl, halogenoalkinyl, cyanoalkyl, hydroxyalkyl, alkoxyalkyl, aryloxyalkyl, arylthioalkyl, arylsulfinylalkyl, arylsulfonylalkyl, arylaminoalkyl, N-alkyl-arylaminoalkyl, alkoxycarbonylalkyl, alkoxycarbonylalkenyl, alkylaminoalkyl, dialkylaminoalkyl, in each case optionally substituted cycloalkyl, cycloalkylalkyl, cycloalkenyl or cycloalkenylalkyl, or optionally substituted heterocyclylalkyl, or in each case optionally substituted aralkyl, arylalkenyl, arylalkinyl, aroyl, aryl, aralkyloxy or aryloxy, for alkoxy, alkenyloxy or alkinyloxy,R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are identical or different and independently of one another represent hydrogen, alkyl, alkenyl, alkinyl, halogenoalkyl, halogenoalkenyl, halogenoalkinyl, cyanoalkyl, alkoxyalkyl, alkylthioalkyl, in each case optionally substituted cycloalkyl, cycloalkylalkyl, aryl or aralkyl or in each case two of these radicals (R.sup.2 and R.sup.3 or R.sup.4 and R.sup.5) represent together alkanediyl and R.sup.5 can also represent alkoxy,X represents oxygen or sulphur andY represents oxygen or sulphur,a plurality of processes and new intermediates for their preparation, and their use as herbicides and plant growth regulators.
摘要:
The invention relates to new fluoromethylated polycyanobenzenes of the formula ##STR1## in which X represents hydrogen, fluorine or chlorine,m is 1 or 2 andn is (6-m),to a process for their preparation and to the salt-like alkali metal cyanide adducts of the fluoromethylated polycyanobenzenes formed as intermediates in this preparation process and to the use of the fluoromethylated polycyanobenzenes for the detection of anions.
摘要:
The fungicidally active N-sulphenylated 2-amino-4-chloro-thiazole-sulphonamides of the formula ##STR1## wherein R.sup.1 and R.sup.2 independently of one another denote hydrogen, alkyl, alkenyl, alkinyl, cycloalkyl, aryl, aralkyl or an aromatic or a non-aromatic heterocyclic radical andR.sup.3 and R.sup.4 independently of one another stand for hydrogen, alkyl, cycloalkyl, aryl or aralkyl or for the dichlorohalogenomethyl-sulphenyl radical --S--CCl.sub.2 X, in which X denotes fluorine, chlorine or bromine, and where furthermore one of the pairs of substituents R.sup.1 and R.sup.3 or R.sup.2 andR.sup.4 together with the nitrogen atom which they substitute can denote morpholino or thiomorpholino, with at least one of the radicals R.sup.3 and R.sup.4 standing for the radical --S--CCl.sub.2 X,can be prepared in a process in which, in a first step, 2,4-dichloro-thiazole is reacted with chlorosulphonic acid to give 2,4-dichloro-thiazole-sulphonyl chloride, in which, in a second step, the 2,4-dichloro-thiazole-sulphonyl chloride is reacted with primary amines or with a primary and a secondary amine to give 2-amino-4-chloro-thiazole-sulphonamides, and in which, in a third step, the sulphonamides mentioned are reacted with dichlorohalogenomethylsulphenyl chlorides to give the substances of the formula (I).
摘要:
The present invention relates to novel 2,4-dichlorothiazole derivatives of the formula ##STR1## wherein X.sup.1, X.sup.2 and X.sup.3 may be H or chlorine. These compounds are useful as starting materials for highly active herbicides and also themselves useful as fungicides. Processes for the preparation of these compounds are also disclosed.
摘要:
Dimeric ketene of 1,2,4-triazole-3-carboxylic acid, of the formula ##STR1## and a process for its preparation by contacting 1,2,4-triazole-3-carboxylic acid with at least an equal molar amount of an acid halide in the presence of the small amount of N,N-disubstituted carboxylic acid amide.
摘要:
2,4,5-Trichloropyrimidine is obtained by reacting 2-cyanoethyl isocyanide dichloride with hydrogen chloride and then reacting the product with chlorine.
摘要:
Process for the preparation of tetrachloropyrimidine, characterized in that 2-cyanoethyl isocyanide dichloride is reacted with chlorine in the gas phase in the temperature range from 200.degree.-650.degree. C.