Abstract:
The invention relates to a process for the preparation of such isomer mixtures of cypermethrine of formula (I), wherein carbon atoms indicated by 1,3 and α stand for a chiral carbon atom and the wavy line indicates cis or trans configuration related to the cyclopropane ring - which contains out of the theoretically possible 8-isomers of cypermethrine at least 95 % of 1RtransS and 1StransR (Ib) isomer pair or only a mixture of 1RcisS and 1ScisR (Ia) and the isomer pair (Ib) of the ratio (Ia):(Ib) = 55:45 - 25:75 by asymmetric transformation of second order performed in the presence of an amine base and solvent from a starting cypermethrine isomer mixture which contains next to the isomer pair (Ib) cis and other trans isomers or the isomer pair Ia + Ib at an undesired ratio.
Abstract:
The subject of the invention is the process for the preparation of mixed ethers of general formula (I), wherein Ar represents an alicyclic, aromatic or one or more heteroatom-containing heterocyclic moiety, optionally substituted by one or more C1-4 alkoxy, methylenedioxy, C1-4 alkyl, halogen, C1-4 haloalkyl or nitro-group, and/or condensed with a benzine ring, R and R independently mean hydrogen C1-4 alkyl, C1-4 haloalkyl, C2-4 alkenyl, phenyl, substituted phenyl, C3-6 cycloalkyl group, R means C1-6 alkyl, C3-6 alkenyl, or C3-6 alkynyl group, optionally substituted by one or more C1-6 alkyl, C3-6 alkenyl, C3-6 alkynyl, C1-6 haloalkyl group, or halogen atom; or a C1-4 alkyloxy-C1-4 alkyloxy-C1-4 alkyl group characterized by, that the compounds of general formula (II), wherein X means hydroxy, halogen or sulphonester leaving group, are reacted in the presence of acid, Lewis acid, metal oxide or metal carbonate, with 1-3 molar equivalent of the alcohol of general formula (III), wherein the meaning of the substituent is as defined above, the resulting ether of general formula (I) is isolated, if desired, stabilized by the addition of a base and/or an anti-oxidant, and if desired the excess of the alcohol is recovered.
Abstract:
The subject of the invention is the process for the preparation of mixed ethers of general formula (I), wherein Ar represents an alicyclic, aromatic or one or more heteroatom-containing heterocyclic moiety, optionally substituted by one or more C1-4 alkoxy, methylenedioxy, C1-4alkyl, halogen, C1-4haloalkyl or nitro-group, and/or condensed with a benzene ring; R means hydrogen, C1-4 alkyl, C1-4 haloalkyl, C2-4 alkenyl, phenyl, substituted phenyl, C3-6cycloalkyl group; R means C1-6alkyl, C3-6alkenyl, or C3-6alkinyl group, optionally mono- or poly-substituted by C1-6alkyl, C1-6alkoxy, C3-6alkenyl, C3-6alkinyl, C1-6haloalkyl group or by halogen atom; or a C1-4 alkyloxy-C1-4alkyl-oxy-C1-4alkyl group. n = 1,2 by the reaction of compounds of general formula (II), wherein R and n have the same meaning as above; X means hydroxy, halogen or sulfonester leaving group, with the compounds of the general formula (III): R2-Y, wherein R has the same meaning as above; Y means hydroxy, halogen or sulfonester leaving group, with the proviso that one of the reaction partners of general formulae (II) and (III) is an alcohol, characterized by, that the reaction is performed under heterogenous conditions in presence of an aqueous base and a phase transfer catalyst, and the resulting product is optionally stabilized by the addition of a base and/or anti-oxidant.
Abstract:
The invention relates to an improved process for preparing amidoxime derivatives of general formula (I), wherein R means a C2-15 group, which may be unsaturated and/or cyclic alkyl, aralkyl group or optionally substituted and/or condensed aromatic and/or heteroaromatic group; R stands for hydrogen or an optionally substituted straight or branched chain or cyclic and/or unsaturated C1-7 alkyl or aromatic group; R represents an optionally substituted straight or branched chain or cylic and/or unsaturated C1-7 alkyl or aromatic group; or R and R together with the adjacent nitrogen atom may form a 5- to 8-membered ring optionally containing other heteroatom(s); and X stands for halogen and their salts by reacting an amidoxime of general formula (II), wherein R is as defined above, in the presence of an alkaline substance, transforming the product to a salt with an acid or transforming the salt to the base, which comprises reacting the amidoxime with an alkaline metal hydroxide or alkaline metal alkoxide and dimethylformamide or 1,3-dimethyl-2-imidazolidinone, preferably in the presence of a proton source, reacting the amidoxime complex thus obtained preferably without isolation with an amine of general formula (III). The invention relates further to pure O-(2-hydroxy-piperidino-1-propil)nicotinic acid amidoxime hydrochloride and hydrobromide and O-(2-hydroxy-3-piperidino-1-propyl)nicotinic acid amidoxime base.
Abstract translation:本发明涉及一种制备通式(I)的偕胺肟衍生物的改进方法,其中R 1表示C2-15基团,其可以是不饱和和/或环状烷基,芳烷基或任选取代的和/或稠合的芳族 和/或杂芳族基团; R 2代表氢或任选取代的直链或支链或环状和/或不饱和的C 1-7烷基或芳基; R 3表示任选取代的直链或支链或环状和/或不饱和的C 1-7烷基或芳基; 或R 2和R 3与相邻的氮原子一起可以形成任选含有其它杂原子的5-至8-元环; X代表卤素及其盐,通过在碱存在下使通式(II)的偕胺肟(其中R 1如上述定义)在酸存在下反应,将产物转化为酸或转化盐 包括使偕胺肟与碱金属氢氧化物或碱金属醇盐和二甲基甲酰胺或1,3-二甲基-2-咪唑啉酮反应,优选在质子源存在下,使得到的偕胺肟配合物优选不与其分离而与 通式(III)的胺。 本发明还涉及纯O-(2-羟基 - 哌啶子基-1-丙基)烟酸偕胺肟盐酸盐和氢溴酸盐和O-(2-羟基-3-哌啶子基-1-丙基)烟酸偕胺肟碱。
Abstract:
New 2,3,4-trinor-1,5-inter-m-phenylene-PGI2 derivatives (wherein A stands for carboxy, cyano, tetrazolyl or -COOR or -CONR R ; R is C1-4 alkyl or an equivalent of a pharmacologically acceptable cation: R and R each stands for hydrogen, phenyl; C1-5 alkyl, optionally substituted by carboxy, hydroxy, phenyl or C2-5 alkoxycarbonyl; or C1-4 alkyl-sulfonyl; or R and R together form an alpha , omega -alkylene chain containing 3-6 carbon atoms; B stands for oxygen or methylene; Y is optionally bromo-substituted vinylene or a -C=C- group: R stands for hydrogen or tetrahydro-pyran-2-yl; R represents an alkyl group containing 5-9 carbon atoms, which can be optionally interrupted by one or more oxygen atom(s) or -CH=CH- or -C=C- group(s) and/or optionally substituted by halogen; or a phenoxymethyl group optionally substituted by halogen or trifluoromethyl; or an alkenyloxymethyl group containing 3-5 carbon atoms; R is hydrogen or C1-4 alkyl; R stands for hydrogen, halogen, cyano, C1-4 alkyl or C1-4 alkoxy; R is hydrogen, halogen, cyano, nitro, hydroxy or C2-5 alkanoylamido; with the proviso that if R stands for an alkyl group containing 5-9 carbon atoms which is unsubstituted or not interrupted by an oxygen atom or a -CH=CH- or -C=C- group; or a phenoxymethyl group optionally substituted by halogen or trifluoromethyl, then either R or R is other than hydrogen, or A is other than carboxy or -COOR ) and a process for the preparation thereof. The new compounds of the general Formula I exhibit prolonged cytoprotecting and aggregation inhibiting and a low hypotensive effect and are superior to prostacycline in the prolonged duration of their activity.
Abstract translation:新的2,3,4-三硝基-1,5-间 - 间 - 亚苯基-PGI 2衍生物(其中A代表羧基,氰基,四唑基或-COOR 3或-CONR 1 R 2; R 3是C 1-4烷基或等同的药学上可接受的阳离子:R 1和R 2各自代表氢,苯基;任选被羧基,羟基,苯基或C 2-5烷氧基羰基取代的C 1-5烷基 ;或C 1-4烷基磺酰基;或R 1和R 2一起形成含有3-6个碳原子的α,ω-亚烷基链; B代表氧或亚甲基; Y任选为溴代亚乙烯基或 一个-C = C-基团:R 4代表氢或四氢 - 吡喃-2-基; R 5表示含有5-9个碳原子的烷基,其可以任选地被一个或多个氧原子中断 或-CH = CH-或-C = C-基团和/或任选被卤素取代;或任选被卤素或三氟甲基取代的苯氧基甲基;或含有3-5个碳原子的烯氧基甲基; R <6>是氢或C 1-4烷基; R 7代表氢 ,卤素,氰基,C 1-4烷基或C 1-4烷氧基; R 8是氢,卤素,氰基,硝基,羟基或C 2-5烷酰基氨基; 条件是如果R 5代表未被取代或未被氧原子或-CH = CH-或-C = C-基团中断的含有5-9个碳原子的烷基; 或任选被卤素或三氟甲基取代的苯氧基甲基,然后R 7或R 8不是氢,或A不是羧基或-COOR 3),以及其制备方法。 通式I的新化合物表现出延长的细胞保护和聚集抑制和低降血压作用,并且在其活性持续时间内优于前列环素。
Abstract:
The invention relates to an arthropodicidal ectoparasiticidal composition, characterized in that, it contains one or more representative(s) of 1S-trans, (1S-trans) alpha S or (1S-trans) alpha (R, S) isomers or a racemic (1S-trans) alpha S(1R-trans) alpha R isomer mixtrure of one or more cyclopropan carboxylic acid ester type compound(s) containing two asymmetric centers in the cyclopropane ring and optionally one or more further asymmetric center(s) in other part of the molecule in an amount of from 0,001-99 % by weight optionally in admixture with an amount of up to 100 % by weight of one or more auxiliary agent(s) particularly antioxidants, stabilising agents, wetting agents, emulsifying agents, dispersing agents, antifoam agents, diluents and/or fillers.
Abstract:
The invention relates to a microencapsulated insecticide product comprising as active ingredient 0.001-80 wt.% 1RcisS/1ScisR and/or 1RtransS/1StransR isomers or isomer mixtures of Cypermethrin of formula (I) beside wall materials optionally together with additional activity enhancing, attractant, filling and auxiliary materials or their mixtures wrapped or imbedded into single or manifold microcapsules of 1-2000 mu m size according to figures (II or III) optionally formulated to an insecticide product with additional insecticides and auxiliary materials.
Abstract:
A synergistic insecticidal composition containing more than one active ingredients and being harmless to environment characterized by comprising in an amount of from 0.001 to 99% by weight a synthetic pyrethroide of the formula (I) - namely substantially only the 1RtransS and 1StransR enantiomer-pair (Ib) out from the possible eight isomers - optionally in admixture with an amount of up to 100% by weight of one or more activator(s) and auxiliary agent(s), particularly antioxidants, stabilising agents, wetting agents, emulsifying agents, dispersing agents, antifoam agents, diluents and/or fillers. The enantiomer-pair Ib consisting of the 1RtransS and 1StransR isomers is new and the invention also relates to the said new enantiomer-pair and a process for the preparation thereof. The advantage of the insecticidal composition of the present invention is that it is less toxical towards warm-blooded animals and useful parasites and is therefore much less harmful to the environment.
Abstract:
The subject of the invention is an aqueous suspension containing: 0.1-20 % by mass beta-cypermethrin, 0-40 % by mass other pesticide substance, 1-10 % by mass surface active substances in total and within this, 1-5 % by mass ethoxylated polyaryl-phenol-phosphate or sulfate, 0.1-25 % by mass mineral and/or synthetic silicates, 0.1-1 % by mass synthetic silicic acid and up to 100 % by mass other auxiliary materials and water as dispersant.