摘要:
Compounds having the formula ##STR1## in which R is alkyl, haloalkyl, cycloalkyl, cycloalkenyl, phenyl, optionally substituted by chlorine, methyl or methoxy, moreover bicycloheptyl or bicycloheptenyl; R.sub.1 is alkyl, optionally substituted by halogen, nitro, cyano or a radical having the formula ##STR2## ALKENYL, OPTIONALLY SUBSTITUTED BY HALOGEN; ALKINYL, ALKOXYALKYL, ALKYLMERCAPTO-ALKYL, CYCLOALKYL, PHENYL, HALOPHENYL, TRIFLUOROMETHYLPHENYL, BENZYL OR A RADICAL HAVING THE FORMULA ##STR3## R.sub.2 is alkyl, alkoxyalkyl, phenyl or halophenyl, R.sub.3 is methyl or ethyl, and X and Y are oxygen or sulfur are valuable pesticides.
摘要翻译:具有式(I)的化合物,其中R是烷基,卤代烷基,环烷基,环烯基,苯基,任选被氯,甲基或甲氧基取代,此外是双环庚基或双环庚烯基; R 1是烷基,任选地被卤素,硝基,氰基或具有下式的基团取代:由HALOGEN取代的式 烷基,烷氧基,烷氧基,烷基,亚苄基,环丙基,苯基,二甲苯基,三氟甲基苯基,苄基或具有该化合物的辐射R2是烷基,烷氧基烷基,苯基或卤代苯基,R3是甲基或乙基,X和Y是氧或硫 是有价值的农药。
摘要:
The present invention relates to agents for protecting crop plants from the phytotoxic side effects of herbicides, which agents contain a compound of the formula ##STR1## wherein Y denotes C--H or N,the symbols R.sub.1 independently of one another denote alkyl, halo-alkyl, alkoxy, haloalkoxy or halogen,R.sub.2 denotes alkyl or cycloalkyl,X denotes COOR.sub.3, CON(R.sub.4).sub.2, COSR.sub.3, CN or ##STR2## R.sub.3 denotes an alkali metal or alkaline earth metal, hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, or phenylalkyl, it being possible for phenyl to be substituted by halogen, or trisalkylsilylalkyl or alkoxyalkyl,the symbols R.sub.4 independently of one another denote H, alkyl or cycloalkyl, which can be substituted, or radicals R.sub.4 together with the N atom linking them form a 4- to 7-membered heterocyclic ring andn denotes 1 to 3,in combination with a herbicide.
摘要:
2-Aminopyrimidines of the formula I ##STR1## in which X and Y are O or S and R.sup.1 and R.sup.2 independently of one another are lower alkyl, alkoxyalkyl or haloalkyl, are obtained by reacting propanediimidates of the formula IIR.sup.1 --X--C(.dbd.NH)--CH.sub.2 --C(.dbd.NH)--Y--R.sup.2 (II)or salts thereof with cyanamide in the presence of a base at pH values above pH 7.The process allows the aminopyrimidines to be prepared in a one-pot reaction
摘要:
A highly selective, inexpensive and quantitative process is described for the preparation of 5-phenylsulfinyl-1H-2-(methoxycarbonylamino)-benzimidazole (oxfendazole) through reaction of 5-phenylmercapto-1H-2-(methoxycarbonylamino)-benzimidazole with hydrogen peroxide in the presence of one or more aliphatic C.sub.1 -C.sub.6 -alcohols with addition of a strong, nonoxidizing mineral acid.
摘要:
Imidazolinones of the formula ##STR1## in which A denotes N or C--R.sup.4 ; B denotes halogenoalkyl, alkoxymethyl, cyanomethyl or thiocyanatomethyl; X denotes alkyl; and Y denotes alkyl, cycloalkyl, alkenyl, phenyl or benzyl; or X and Y, together with C, denote a spiro-cycloalkyl group; Z denotes H, (substituted) alkyl, alkenyl, propargyl or an alkyl, carboxylic acid ester or sulfonic acid ester group; and R.sup.1 -R.sup.4 denote H, halogen, alkyl, alkoxy, alkoxycarbonyl, halogenoalkyl, NO.sub.2, CN, (substituted) phenoxy or (substituted) phenyl, or in each case two adjacent radicals together denote the radical --CH.dbd.CH--CH--CH--, are active herbicides and growth regulators.
摘要:
Phosphoric and phosphonic acid derivatives of substituted 4-hydroxyquinolines of the formula ##STR1## in which R.sup.1 denotes alkyl, alkoxy, alkylthio, (di)alkylamino or phenyl, R.sup.2 and R.sup.4 denote alkyl, R.sup.3 denotes H, halogen, carbalkoxy, substituted carbonamido or CN, R.sup.5 denotes H, halogen, NO.sub.2, alkyl, alkoxy or CF.sub.3 and X denotes O or S, are effective insecticides and fungicides.
摘要:
1,2,4-triazole is obtained by cyclization of N,N'-diformylhydrazine with ammonia in the presence of formamide. The amount of ammonia required is either formed in situ from thermally decomposable ammonium salts, or supplied by feeding in gaseous ammonia. Simultaneously, the water of reaction is constantly distilled off from the system.
摘要:
(Phenoxy- or benzyl)-phenoxypropionic acid methyl esters are produced by esterification of the corresponding anhydrous alkali metal salts with half the molar amount of dimethyl sulfate at a temperature exceeding 120.degree. C.
摘要:
A large number of customary processes for separating amino acids fails when very polar hydrophilic amino acids with isoelectric points (IEP) which are close to one another are to be fractionated. Mixtures of L-glutamic acid (IEP=3.24) and L-phosphinothricin (IEP=2.6) produced by enzymatic transaminations of the corresponding .alpha.-keto acid have been difficult to separate to date. The invention relates to a process for separating L-phosphinothricin and L-glutamic acid, which comprises carrying out the separation as liquid/liquid extraction with two non-miscible aqueous phases as phase system, where the phase former contained in the phase system is a combination of at least two different water-soluble polymers or of at least one water-soluble salt and one water-soluble polymer, and the extraction is carried out by multistage countercurrent partition on the van Dijck principle.
摘要:
Process for the preparation of compounds of the formula ##STR1## where R is (C.sub.1 -C.sub.4)alkyl, which comprises reacting a compound of the formula II ##STR2## with an alcoholate of the formula IIIMet-OR (III)where Met is Na or K and R has the abovementioned meaning, at temperature from -30.degree. C. to +10.degree. C.