摘要:
Phenylacetaldehydes of the structure (I) ##STR1## where the substituents X are 2,4-dichloro, difluoro, trifluoro, tetrafluoro, p-trifluoromethyl, 2-methyl-4-fluoro, haloalkoxy or haloalkylthio radicals or are adjacent Cl, F, CF.sub.3, alkyl, alkoxy, haloalkoxy and/or haloalkylthio radicals.
摘要:
2-benzylfuryl compounds of the general formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are identical or different substituents and are each hydrogen, halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, haloalkylthio, alkenyl or haloalkenyl, each of not more than 6 carbon atoms, n being 1, 2 or 3 where R.sup.3 is not hydrogen, and R.sup.4 and R.sup.5 are each hydrogen or alkyl of not more than 6 carbon atoms, R is --CHO or CHR.sup.6 OA, R.sup.6 is hydrogen, cyano, alkyl, alkenyl, haloalkenyl or alkynyl, each of not more than 6 carbon atoms, or carboxamide, and A is either hydrogen or a radical of an acid typical for pyrethroids, with the proviso that R.sup.2 is not hydrogen, chlorine, bromine, methyl or methoxy when R.sup.1 is hydrogen or methyl and R.sup.3 and A are each hydrogen, and furthermore with the proviso that R.sup.1 and R.sup.2 are not methyl when A is a radical of tetramethylcyclopropanecarboxylic acid, and finally with the proviso that R.sup.2 is not methyl, chlorine, bromine or methoxy and R.sup.1 and R.sup.3 are not hydrogen when A is a radical of chrysanthemumic acid, their preparation and their use as intermediates for crop protection agents or as crop protection agents.
摘要:
The invention relates to the preparation of organic nitrogen compounds, in particular of aminoalkanes, alkyloximes, alkylnitrones or mixtures thereof, which have only one nitrogen-functional group and no alcoholic hydroxyl groups in the molecule, from nitro-containing reaction products of polymers of C.sub.2 -C.sub.6 -olefins with an average degree of polymerization P=5-100 with nitrogen oxides or mixtures of nitrogen oxides and oxygen by hydrogenation of these reaction products. The invention also relates to particular mixtures of such aminoalkanes, alkyloximes and/or alkylnitrones and to individual compounds of these types themselves. The designated products are suitable as additives to fuels and lubricants.
摘要:
Preparation of 5-(2,2,2-trihaloethyl)-4,4-dialkyl-tetrahydro-furan-2-ones of the formula I ##STR1## where R.sup.1 and R.sup.2 are each alkyl of 1 to 4 carbon atoms and X is halogen, by reacting a carboxylic acid amide of the formula II ##STR2## where R.sup.3 and R.sup.4 are each alkyl of 1 to 4 carbon atoms, aralkyl of 7 to 9 carbon atoms or aryl of 6 to 10 carbon atoms or together with the nitrogen on which they are present as substituents form a 5-membered or 6-membered saturated ring which may contain a second hetero-atom, with a carbon tetrahalide of the formula IIICX.sub.4 (III)to give an iminium salt of the formula IV ##STR3## and subsequently hydrolyzing this iminium salt; and novel iminium salts of the formula IV.
摘要:
New pyridazinium compounds which can be used as intermediates and are of interest because of their pharmacological properties, and their production.The invention relates to new pyridazinium compounds and their production. These compounds are of pharmacological interest.In DOS No. 1,912,941 6-alkoxypyridazinium compounds are said to have valuable pharmacological properties. Furthermore pyridazinium compounds are known for example as starting materials for pesticides and dyes from DOS No. 2,003,461 or U.S. Patent 3,510,488.The quaternization of pyridazines into pyridazinium compounds is described in an article in Acta. Chem. Scand., 21 (1967), 1067 to 1080, and the reaction of 6-chloropyridazinium compounds with amines is described in volume 23 (1969), 2534 to 2536.
摘要:
Reaction products of polymers of C.sub.2 -C.sub.6 -olefins having an average degree of polymerization P of from 5 to 100 and oxides of nitrogen or mixtures of oxides of nitrogen and oxygen are used as additives for fuels, in particular for fuels for gasoline engines.
摘要:
A process for the preparation of 2,4,6-trimethylbenzoic acid of the formula I ##STR1## in which .alpha.-chloro-2,4,6-trimethylacetophenone is reacted with an alkali hydroxide solution and chlorine in the presence of a phase-transfer catalyst at a temperature ranging from 0.degree. to 150.degree. C. and a pressure ranging from 0.01 to 50 bar, and a process for the preparation of 2,4,6-trimethylbenzoic acid I, in which .alpha.-chloro-2.4.6-trimethylacetophenone of the formula II ##STR2## is reacted with 1,3,5-trimethylbenzene and chloroacetyl chloride in the presence of a catalyst at a temperature ranging from 0.degree. to 150.degree. C. and a pressure ranging from 0.01 to 50 bar, the catalyst used being an iron oxide.
摘要:
Novel 1-phenyl-4(1H)-pyridazinone-imines of the formula (I) ##STR1## which are substituted at the imine nitrogen, and their addition salts with a physiologically tolerated acid, processes for their preparation, pharmaceutical formulations containing these compounds, and their use as drugs, in particular as antidepressants, antiparkinson drugs and antihypotonic agents.
摘要:
Salts of 1,2,3,4-tetrahydro-.beta.-carbolines of the formula I ##STR1## where R is hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or trifluoromethyl, x is halogen and n is an integer from 2 to 5, and their preparation are described. The compounds are intermediates for the preparation of pharmacologically active substances.
摘要:
The preparation of bicyclic enol-ethers (I) ##STR1## (where n is from 3 to 12, and R.sup.1, R.sup.2 and R.sup.3 may be H or C.sub.1 --C.sub.4 -alkyl) by free radical adduct formation of CHR.sup.1 =CR.sup.2 --CHR.sup.3 --O--R.sup.4 (III)(where R.sup.4 is tert.-butyl, tetrahydrofuran-2-yl or tetrahydropyran-2-yl) with a cyclic ketone (IV) ##STR2## followed by acid-catalyzed cyclization, and novel compounds II ##STR3## The compounds (I) and (II) are intermediates for the synthesis of musk-like fragrances.