摘要:
A novel process for preparing the compounds of the formula I where: n is 0, 1 or 2; R1, R2 are C1-C6-alkyl; R3, R4, R5 are hydrogen or C1-C6-alkyl, or R4 and R5 together form a bond; R6 is Cl, Br, which comprises a synthesis sequence starting from 1,2-dialkylbenzenes of the formula II with subsequent halogenation to give 3,6-dihalo-1,2-dialkylbenzenes, haloalkylation to give benzyl bromides, oxidation to give benzaldehydes, oximation, reaction with alkenes to give isoxazoles, conversion into thioethers and, if appropriate, oxidation to give sulfenyl or sulfonyl derivatives of the formula I.
摘要翻译:一种制备式I化合物的新方法,其中n为0,1或2; R 1,R 2为C 1 -C 6 - 烷基; R 3,R 4,R 5为氢或C 1 -C 6烷基,或者R 4和R 5一起形成 R 6是Cl,Br,其包含从式II的1,2-二烷基苯开始的合成序列,随后卤化以得到3,6-二卤代-1,2-二烷基苯,卤代烷基化得到苄基溴,氧化得到 苯甲醛,肟化,与烯烃的反应得到异恶唑,转化成硫醚,如果合适,氧化得到式I的磺酰基或磺酰基衍生物。
摘要:
Benzene derivatives of the formula ##STR1## wheren is 0, 1 or 2,x is nitro or amino,Z is a direct bond or unsubstituted or substituted C.sub.1 -C.sub.6 -alkylene,Y is vinyl or a radical of the formula C.sub.2 H.sub.4 --Q, where Q is hydroxyl or a group which can be removed under alkaline reaction conditions,R.sup.1 and R.sup.2 are hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, nitro, amino, hydroxysulfonyl or a radical of the formula Z--S(O).sub.n --Y, where n, Z and Y have the abovementioned meanings, andHet is the radical of a heterocyclic ring, are described.
摘要:
Herbicides contain one or more antagonistic 3-aminobenzo[b]thiophenes I ##STR1## wherein the variables on the compound of formula I are defined in the specification.A) the group consisting of the cyclohexenone derivatives orB) the group consisting of the 4-hetaryloxyphenoxyacetic acid derivatives.
摘要:
Azo dyes useful for dyeing or printing textile fibers or fabrics and for thermal transfer have the formula ##STR1## where R.sup.1 and R.sup.2 are each substituted or unsubstituted C.sub.1 -C.sub.10 -alkyl or substituted or unsubstituted C.sub.3 -C.sub.4 -alkenyl or R.sup.1 may also be hydrogen,R.sup.3 is hydrogen or C.sub.1 -C.sub.6 -alkyl,R.sup.4 and R.sup.5 are each hydrogen, C.sub.1 -C.sub.6 -alkyl, halogen, C.sub.1 -C.sub.6 -alkoxy, amino or mono- or di(C.sub.1 -C.sub.4 -alkyl)amino, andD is a radical of the thiophene, thiazole, isothiazole, benzothiophene, thienothiophene or thienothiazole series.
摘要:
A process for the preparation of 8-bromomethyl-3-methylquinoline compounds of the formula I ##STR1## where one or both substituents X are chlorine and, where relevant, the other substituent X is hydrogen, by bromination of the corresponding 8-methylquinoline compound in the presence of a 2-phase mixture of a solvent stable to bromination and of, preferably, buffered water.
摘要:
A process for the preparation of 8-bromomethyl-3-methylquinoline compounds of the formula I ##STR1## where one of both substituents X are chlorine and, where relevant, the other substituent X is hydrogen, by bromination of the corresponding 8-methylquinoline compound in the presence of a 2-phase mixture of a solvent stable to bromination and of, preferably, buffered water.
摘要:
Quinoline derivatives of the formula ##STR1## where X, n, R.sup.1, R.sup.2 and Y have the meanings given in the description, are used for controlling undesirable plant growth.
摘要:
The novel compounds of the general formula I ##STR1## where R and R.sup.1 are substituents and the rings A can be substituted and/or can carry fused rings, are useful intermediates for the preparation of, for example, dyes and active ingredients.
摘要:
Phthalimides of the formula I ##STR1## where R is a substituent and the ring A can be further substituted, are cleaved by a process in which a compound of the formula I is treated with an alkanolamine.The compounds prepared according to the invention are useful intermediates for the preparation of dyes, drugs and plastics.
摘要:
3,7-dichloroquinoline derivatives of the formula ##STR1## where R has the meanings given in the disclosure, a process for the preparation thereof, and their use for combating unwanted plant growth.