摘要:
A process for the preparation of 4-sulfonated anthranilic acids by sulfonation of ortho-nitrotoluenes with chlorosulfonic acid or oleum followed by oxidation of the methyl group and, finally, reduction of the nitro group.
摘要:
Benzisothiazole-azo dyes useful for dyeing synthetic fiber materials have the formula ##STR1## where X is hydrogen, chlorine, bromine, cyano or nitro and K is a radical of the formula ##STR2## where R.sup.1 is substituted or unsubstituted C.sub.1 -C.sub.12 -alkyl, substituted or unsubstituted phenyl, C.sub.3 -C.sub.5 -alkenyl or C.sub.5 -C.sub.7 -cycloalkyl,R.sup.2 is hydrogen or C.sub.1 -C.sub.4 -alkyl,R.sup.3 is hydrogen or methyl andR.sup.4 is hydrogen, cyano, carbamoyl or C.sub.1 -C.sub.4 -alkoxycarbonyl.
摘要:
Quinoline derivatives fused to a five-membered heterocyclic ring and of the formula ##STR1## where R.sup.1 is hydrogen, halogen, carboxyl or substituted or unsubstituted alkyl,Y is nitrogen or C--R.sup.2, whereR.sup.2 is hydrogen, halogen, hydroxyl, alkoxy, alkylthio, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted benzyl, phenethyl, phenyl or naphthyl, or a substituted or unsubstituted 5- or 6-membered heterocyclic ring with one or two heteroatoms selected from the group consisting of oxygen, sulfur and nitrogen,X is oxygen or N--R.sup.3, R.sup.3 being hydrogen, substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl or subsituted or unsubstituted benzyl,processes for their manufacture and their use for combating unwanted plant growth.
摘要:
3-Methylquinoline-8-carboxylic acid I ##STR1## and derivatives thereof are prepared by reacting o-toluidine II or a derivative thereof ##STR2## with methacrolein II ##STR3## in 70-90% strength by weight sulfuric acid in the presence of iodine or of an iodine compound, and oxidizing the resulting 3,8-dimethylquinoline IV or a derivative thereof ##STR4## with nitric acid in a solution containing sulfuric acid, in the presence of vanadium ions, by a process in which, in the sulfuric acid-containing reaction solution of the 3,8-dimethylquinoline IV, the byproducts of the reaction are first decomposed by oxidation, the resulting 3,8-dimethylquinoline solution is concentrated by distillation and the 3,8-dimethylquinoline is then oxidized in situ with nitric acid to give the 3-methylquinoline-carboxylic acid.
摘要:
Oxime esters of substituted quinoline-8-carboxylic acids of the formula ##STR1## where X is hydrogen, C.sub.1 -C.sub.4 -alkyl or halogen, Z is hydrogen or methyl, R.sup.1 is C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.4 -alkoxymethyl, C.sub.1 -C.sub.4 -alkoxyethyl, C.sub.1 -C.sub.4 -alkylthiomethyl, C.sub.1 -C.sub.4 -alkylthioethyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, C.sub.3 -C.sub.6 -alkenyl or C.sub.5 -C.sub.8 -cycloalkyl, each of which is unsubstituted or bears up to 3 methyl substituents, hydrogen, cyano, acetyl, benzoyl, unsubstituted benzyl or phenyl, or benzyl or phenyl bearing up to 3 substitutents selected from the group consisting of halogen, cyano, trifluoromethyl, C.sub.1 -C.sub.4 -haloalkyloxy, C.sub.1 -C.sub.6 -alkylthio, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkyl, hydroxy, dimethylamino or acetamino, R.sup.2 is hydrogen if R.sup.1 is not hydrogen, R.sup.2 further denotes C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.4 -alkoxymethyl, chloromethyl, azolylmethyl, 1,1-dimethoxymethyl, cyano, C.sub.1 -C.sub.4 -alkoxycarbony, C.sub.1 -C.sub.4 -alkoxy, phenyl if R.sup.1 is H, CH.sub.3 or acetyl, or R.sup.2 denotes, when R.sup.1 is H or methyl, furyl, tetrahydrofuryl, thienyl, tetrahydropyranyl, tetrahydrothiopyranyl, dihydro-.DELTA..sup.3 -pyranyl or dihydro-.DELTA..sup.3 -thiopyranyl; further, R.sup.1 and R.sup.2, together with the carbon atom to which they are linked, denote C.sub.1 -C.sub.12 -cycloalkylidene, C.sub.5 -C.sub.6 -cycloalkenylidene or 4-oxacyclohexadienylidene, each of which is unsubstituted or bears up to 3 methyl substituents, it being possible, where the ring is 5-membered or 6-membered, or doubly unsaturated 6-membered, for it to contain an oxygen or sulfur atom, their preparation, and their use as herbicides.
摘要:
3-Amino-1,2-benzisothiazoles are manufactured by reacting o-halobenzonitriles with ammonia and elementary sulfur. The products are fungicides and starting materials for the manufacture of dyes, crop protection agents and pharmaceuticals.
摘要:
Production of new 2-(o-alkylthiophenyl)-1,3-diazacycloalkene hydrohalides by reaction of a benzo-thietane-2-spiro-2'-(1',3'-diazacycloalkane) with an alkyl halide, and the new 2-(o-alkylthiophenyl)-1,3-diazacycloalkene hydrohalides which are pharmaceuticals, auxiliaries for the textile and rubber industries, plant protection agents and starting materials for the production of pharmaceuticals, plant protection agents and dyes.
摘要:
Naphth-[2,1-d]-isothiazole, agents for combatting nematodes containing this active ingredient, and a method of combatting nematodes with this active ingredient.
摘要:
1,3-Diazacycloalkeno-[1,2-d]-benzo-[f]-1,3,4-thiadiazepines and their acid addition salts, a process for their production and their pharmacological use.
摘要:
A process is described for preparing isoxazoles of the formula I where the substituents are as defined below: R1 is hydrogen, C1-C6-alkyl, R2 is C1-C6-alkyl, R3, R4, R5 are hydrogen, C1-C6-alkyl, or R4 and R5 together form a bond, R6 is a heterocyclic ring, n is 0, 1 or 2; which comprises preparing an intermediate of the formula VI where R1, R3, R4 and R5 are as defined above, followed by halogenation, thiomethylation, oxidation and acylation to give compounds of the formula I. Also novel intermediates for preparing the compounds of the formula I and novel processes for preparing the intermediates are described.