摘要:
An alkoxycoumarin substituted by a heterocyclic radical, of the formula ##STR1## Het is one of the following heterocyclic radicals: where X is oxygen or sulfur.
摘要:
An alkoxycoumarin substituted by a heterocyclic radical, or the formula ##STR1## R.sup.1 and R.sup.2 independently of one another are each hydrogen, C.sub.1 -C.sub.5 -alkyl, trifluoromethyl, phenyl or halogen, or together form a C.sub.3 -C.sub.5 -alkylene chain, R.sup.3 is C.sub.1 -C.sub.5 -alkyl or halogen, n is an integer of from 0 to 3, R.sup.4 is hydrogen or C.sub.1 -C.sub.4 -alkyl and Het is one of the following heterocyclic radicals: ##STR2##
摘要:
A process for preparing tetrahydropyran-4-carboxylic acid and its esters of the formula I ##STR1## (R=H, C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, aryl, C.sub.7 -C.sub.12 -alkylphenyl and C.sub.7 -C.sub.12 -phenylalkyl) by reacting 2,7-dioxaspiro[4.4]nonane-1,6-dione II ##STR2## with water or alcohols IIIR--OH (III),in the presence of acidic catalysts at from 150.degree. to 350.degree. C. and from 0.01 to 100 bar.
摘要:
A process for purifying esters of tetrahydropyran-4-carboxylic acid of the formula I ##STR1## where R.sup.1 to R.sup.3 are each C.sub.1 -C.sub.4 -alkyl, and R.sup.2 and R.sup.3 are each additionally hydrogen, from mixtures produced in the reaction of butyrolactones of the formula II ##STR2## where R.sup.2 and R.sup.3 have the abovementioned meanings, and R.sup.4 is hydrogen, alkyl of 1-6 carbons or acyl of the formula --CO--R.sup.2, with alcohols of the formula R.sup.1 OH in the presence of oxide catalysts, by distillation, which entailsa) removing overhead, in a first column with 5-25 theoretical plates with a distillate pressure of 700-1100 mbar and a distillate temperature of 50.degree.-80.degree. C., an alcohol and up to 10% of the water,b) transferring the bottom product from the first column into a second column with 18-40 theoretical plates, into which a water entrainer is metered between plates 15 and 30, and is circulated, and which operates with a distillate pressure of 35-350 mbar and a distillate temperature of 18.degree.-70.degree. C., with the esters of tetrahydropyran-4-carboxylic acid being removed between plates 8 and 18 at 90.degree.-150.degree. C., and, where appropriate,c) feeding the bottom product from the second column into a third column with 5-25 theoretical plates, and returning the overhead products at a distillate pressure of 1-100 mbar and a distillate temperature of 90.degree.-140.degree. C. to the synthesis of the esters of tetrahydropyran-4-carboxylic acid.
摘要:
Abstract of the Disclosure: .alpha.-Arylacrylic acid derivatives of the general formula I ##STR1## where X is ethylene or ethenylene;Y is a direct bond or oxygen;R.sup.1 is an unsubstituted or substituted mononuclear or dinuclear aromatic or heteroaromatic system;R.sup.2 is cyano, nitro, halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio or haloalkylthio;n is 1 or 2, and the radicals may be different if n is 2, and(c m is 0, 1 or 2, and the radicals may be different if m is 2,with the proviso that R.sup.1 is not phenyl when n is 1 and m is 0, their preparation, insecticides and fungicides containing them and methods for their use.
摘要翻译:公开的摘要:通式Ⅰ的α-丙烯酸衍生物(I)其中X是亚乙基或亚乙烯基; Y是直接键或氧; R1是未取代或取代的单核或双核芳族或杂芳族体系; R 2是氰基,硝基,卤素,烷基,卤代烷基,烷氧基,卤代烷氧基,烷硫基或卤代烷硫基; n为1或2,如果n为2,则基团可以不同,(cm为0,1或2,如果m为2,则基团可以不同,条件是当n为1时R1不为苯基) m为0,其制备方法,含有杀虫剂和杀真菌剂及其使用方法。
摘要:
Methyl .alpha.-arylacrylates substituted by a heterocyclic radical and having the general formula ##STR1## where R is alkyl, alkenyl, haloalkyl, cycloalkyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, halogen or aryl, the aromatic ring being unsubstituted or substituted, Het is a five-membered heteroaromatic ring which is unsubstituted or substituted and has from one to three heteroatoms, and A is ethenylene, ethylene, methyleneoxy or methylenethio, and fungicides and pesticides containing these compounds.
摘要:
.alpha.-Arylacrylates substituted by a heterocyclic radical and of the general formula I ##STR1## where R.sup.1 is alkoxy or alkylthio R.sup.2 is alkyl, Het is pyridyl, pyridone, quinolyl, pyrimidinyl, pyrimidinone, the heterocyclic ring system being unsubstituted or substituted, A is carbonyloxy, oxygen or sulfur, and n is 0 or 1, and their plant-tolerated acid addition salts and metal complexes, and the N-oxides of the heterocyclic compounds, and fungicides containing these compounds.
摘要:
Azolylmethyloxiranes of the general formula I ##STR1## where A and B are cycloalkyl, tetrahydropyranyl, tetrahydrofuranyl, dioxanyl, norbornyl, cycloalkenyl or phenyl, each of these radicals being unsubstituted or substituted, with the proviso that A and B are not simultaneously phenyl, D is O, X is CH or N, and their plant-tolerated acid addition salts or metal complexes, and fungicides containing these compounds.
摘要:
Isoxazole(isothiazole)-5-carboxamides of the formula ##STR1## where X is oxygen or sulfur,R.sup.1 is hydrogen, substituted or unsubstituted alkyl, alkoxy, substituted or unsubstituted cycloalkyl, a 5- or 6-membered heterocyclic radical having one or two heteroatoms selected from the group consisting of oxygen, sulfur and nitrogen, and which may be substituted, or substituted or unsubstituted phenyl, orR.sup.2 is formyl, 4,5-dihydrooxazol-2-yl or a radical of the formula COYR.sup.5 or CONR.sup.6 R.sup.7, whereY is oxygen or sulfur,R.sup.5 ishydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, haloalkenyl, substituted or unsubstituted alkynyl,cycloalkyl,cycloalkenyl,substituted or unsubstituted phenyl,a 5- or 6-membered heterocyclic radical having one or two heteroatoms selected from the group consisting of oxygen, sulfur and nitrogen,cycloalkanimino, phthalimido, succinimido, or a radical ##STR2## R.sup.3 and R.sup.4 have the meanings defined herein, or their agriculturally acceptable salts possess herbicidal activity.
摘要:
Novel (p-phenoxyphenoxy)-methyl-five-membered heeroaromatic radicals of the formula ##STR1## where the substituents have the following meanings: R.sup.1, R.sup.2, R.sup.3 hydrogen, halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.3 -C.sub.10 -cycloalkyl, nitro or cyano,R.sup.4 hydrogen or C.sub.1 -C.sub.4 -alkyl, and a five-membered heteroaromatic ring, and their use for combating pests.