摘要:
Novel aminopropanol derivatives of 2-methyl-5-(2-hydroxystyryl)-1,3,4-thiadiazole and their addition salts with acids, their preparation, pharmaceutical formulations containing these compounds, and their use as drugs in the treatment of coronary heart disease, hypertonia and cardiac arrhythmias.
摘要:
2-Methyl-5-(2-hydroxystyryl)-1,3,4-thiadiazole of the formula ##STR1## and processes for its preparation by condensing salicylaldehyde with 2,5-dimethyl-1,3,4-thiadiazole or 2-methyl-5-(triphenylphosphine-methylene)-1,3,4-thiadiazole. 2-Methyl-5-(2-hydroxystyryl)-1,3,4-thiadiazole is a valuable intermediate for the preparation of pharmacologically active compounds; for example the alkylamino-hydroxypropyl ethers can, because of their .beta.-sympatholytic action, be used as drugs for the treatment of coronary diseases of the heart, cardiac arrhythmias and hypertonia.
摘要:
Alkylaminopropanol derivatives of 2-methyl-5-(2-hydroxystyryl)-1,3,4-thiadiazole and their addition salts with acids, their preparation, and pharmaceutical formulations, containing these compounds, which may be used for the treatment of coronary diseases of the heart, of hypertonia and of cardiac arrhythmias.
摘要:
Novel alkylaminopropanol derivatives of 2-methyl-5-(2-hydroxystyryl)-1,3,4-thiadiazole and their addition salts with acids, their preparation, and pharmaceutical formulations, containing these compounds, which may be used for the treatment of coronary diseases of the heart, of hypertonia and of cardiac arrhythmias.
摘要:
New aminopropanol derivatives of 4-hydroxy-1,2-benzisothiazole and their addition salts with acids, their preparation, and pharmaceutical formulations which contain the said compounds and may be used for the treatment and prophylaxis of cardiac and circulatory disorders.
摘要:
The present invention describes a process for preparing isoxazoles of the formula I where: R1 is hydrogen, C1-C6-alkyl, R2 is hydrogen, C1-C6-alkyl, R3, R4, R5 are each 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 each as defined above, followed by halogenation, thiomethylation, oxidation and acylation to give compounds of the formula I. Furthermore, the invention describes novel intermediates for preparing the compounds of the formula I and novel processes for preparing the intermediates.
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:
A herbicidal composition containing one or more substituted 2-aminothiophenes of the formula I ##STR1## where R.sup.1 and R.sup.2 together from a C.sub.4 -alkylene chain to which a benzene ring may be fused,R.sup.3 is --CN or CX--R.sup.6, where R.sup.6 is hydroxyl, C.sub.1 -C.sub.4 -alkoxy or amino,R.sup.4 is hydrogen or a phenyl group which may carry one or two nitro radicals,--PO(OR.sup.8).sub.2, --CX--R.sup.9, --SO.sub.2 R.sup.10, --CX--N(H) --CO--R.sup.8 or --CX--N(R.sup.7)--SO.sub.2 --R.sup.11,whereR.sup.8 is hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl groupR.sup.9 is C.sub.1 -C.sub.20 -alkyl, partially or completely halogenated C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.6 -cycloalkyl, or amino, C.sub.1 -C.sub.4 -alkylamino, C.sub.3 -C.sub.8 -cycloalkylamino, phenyl or phenylamino, where the aromatic moiety may carry at least one of nitro and halogen;R.sup.10 is C.sub.1 -C.sub.4 -alkyl or phenyl, which may carry one C.sub.1 -C.sub.4 -alkyl radical;R.sup.11 is pyrrolidin-1-yl, piperidin-1-yl, morpholin-4-yl or piperazin-1-yl, where the heterocyclic structures may carry one C.sub.1 -C.sub.4 -group;R.sup.5 is hydrogen;orR.sup.4 and R.sup.5 together form a group .dbd.CR.sup.12 R.sup.13 or --CO--W--CO--, where R.sup.12 is hydrogen, amino, C.sub.1 -C.sub.4 -alkylamino or C.sub.3 -C.sub.8 -cycloalkylamino;R.sup.13 is amino, C.sub.3 -C.sub.8 -cycloalkylamino, phenyl or pyridyl, where the two last mentioned substituents may carry at least one halogen or nitro radicals;W is an ethylene or ethenylene bridge, or a 6-membered 1,2-C-bonded aromatic bridge where these bridge members may carry, on each substitutable carbon atom, at least one halogena 5-membered or 6-membered 1,2-C-bonded cycloalkylene or cycloalkenylene bridge,and the basic salts of the compounds I in which R.sup.3 is hydroxycarbonyl or hydroxythiocarbonyl, and the acidic salts of the compounds I which contain a basic nitrogen atom, as antagonistic compoundsand one or more herbicidal active ingredients from the group consisting ofthe cyclohexenone derivatives of the formula III ##STR2##
摘要:
2-Amino-4-trichloromethylpyridines of the general formula I ##STR1## where R.sup.1 is hydrogen or C.sub.1 -C.sub.8 -alkyl,R.sup.2 is C.sub.1 -C.sub.8 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.2 -C.sub.4 -alkenyl or phenyl, benzyl or phenylsulfonyl,--CX--R.sup.3, --SO.sub.2 R.sup.3 or --PX(OR.sup.4).sub.2 orR.sup.1 and R.sup.2 together form .dbd.CR.sup.5 R.sup.6 or --CO--Z--CO--,X is oxygen or sulfur,R.sup.3 is C.sub.1 -C.sub.20 -alkyl, C.sub.2 -C.sub.6 -alkenyl, amino, C.sub.1 -C.sub.6 -alkylamino, di-C.sub.1 -C.sub.6 -alkylamino, morpholino, piperidino, pyrazolidino or C.sub.1 -C.sub.8 -alkylcarbonylamino, substituted or unsubstituted phenylamino or benzylamino,R.sup.4 is C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -haloalkyl or substituted or unsubstituted phenyl,R.sup.5 is hydrogen, C.sub.1 -C.sub.4 -alkyl, or substituted or unsubstituted phenyl,R.sup.6 is substituted or unsubstituted phenyl,Z is substituted or unsubstituted ethylene which may be part of a substituted or unsubstituted cycloalkyl or cycloalkylene radical, substituted or unsubstituted ethenylene which may be part of a substituted or unsubstituted aromatic or heteroaromatic ring, and Z is not part of an unsubstituted phenyl radical, agriculturally useful salts thereof, processes for their preparation and the use thereof as nitrification inhibitors.
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.