摘要:
3-(3,4,5,6-tetrahydrophthalimido)cinnamic esters I ##STR1## (R.sup.1 =H, halogen; R.sup.2, R.sup.3 =halogen; R.sup.4 =C-organic radical, R.sup.5 =H, CH.sub.3) are prepared by reducing 3-nitrocinnamic esters II ##STR2## with hydrogen in the presence of a catalyst and condensing the resulting 3-aminocinnamic esters III ##STR3## with a 3,4,5,6-tetrahydrophthalic anhydride IV ##STR4## and are valuable active ingredients in crop protection.
摘要:
Abstract of the Disclosure: Styrene derivatives I ##STR1## where R.sup.1 is H or halogen, R.sup.2 is halogen, R.sup.3 is H, halogen or C.sub.1 -C.sub.4 -alkyl, R.sup.4 is CN or C.sub.1 -C.sub.6 -alkylcarbonyl and A is a heterocyclic radical A.sub.1 to A.sub.5 : ##STR2## where R.sup.5 and R.sup.6 are H, CH.sub.3 or C.sub.2 H.sub.5, n is 0 or 1 and X is oxygen or sulfur, with the proviso that R.sup.4 is alkylcarbonyl when R.sup.1 is H and at the same time A is A.sub.2 where n is 0, and agriculturally useful salts thereof, processes for the preparation of the styrene derivatives I and herbicides containing them.
摘要:
A process for the preparation of &agr;-chloromethylene-triorganylphosphorane derivatives I (radicals R are C-organic substituents and A stands for CN or CO-B where B is a C-organic or O-organic radical which is inert under chlorination conditions) by chlorination of phosphoranes II with chlorine, wherein the chlorination is carried out in the presence of a mineral base as hydrogen chloride acceptor and the chlorine and base are fed to the reaction mixture concurrently but separately at the rates at which they are consumed. The reaction products I are important intermediates for plant protectants.
摘要翻译:制备α-氯亚甲基 - 三有机基磷烷衍生物I(自由基R是<有机取代基)的方法,A代表 CN SMALLCAPS>或 CO SMALLCAPS> - B,其中B是在氯化条件下为惰性的 SMALLCAPS> - 有机或 O SMALLCAPS> - 有机基团),其中氯化在存在下进行, 的矿物碱作为氯化氢受体,氯和碱同时进料到反应混合物中,但分别以它们被消耗的速率进料。反应产物I是植物保护剂的重要中间体。
摘要:
2-chloro-5-nitrobenzaldehyde or an acetal thereof is isolated from a mixture of isomers thereof at a temperature of from -10.degree. to +140.degree. C., by suspending the mixture of isomers in a solvent or solvent mixture.
摘要:
A method is used to treat a surface of a brake disc to increase the adhesive power of a coating to the surface. The method includes roughening the surface by introducing at least one depression in the surface. The width of the depression is widened with increasing depth of the depression. A positive connection is formed between the brake disc and the coating via an undercut.
摘要:
A cooling device for a battery system may include at least two battery units. The cooling device may include at least a first and a second cooling plate able to be flowed through respectively by a coolant. The first and second cooling plate may be arranged respectively for thermal coupling with a respective battery unit. The first and second cooling plate each may include a first fluid inlet, which is connected fluidically with a first fluid outlet via a first fluid duct extending along an extent direction, and a second fluid inlet, which is connected fluidically with a second fluid outlet via a second fluid duct extending along the extent direction.
摘要:
A bone plate for osteosynthesis having a plate-shaped base and a top, with the base defining only a single receiving opening for retaining a bone screw that attaches it, for example, to a vertebra.
摘要:
The invention relates to processes for preparing 2-aminomethyl-4-cyanothiazole and its salts of the formulae Ia and Ib in which n=1 or 2 and for n=1, X is chloride, bromide, triflate and hydrogen sulfate and for n=2, X is sulfate, which comprises the process step where the aminonitrile of the formula II is stirred with a cysteine ester of the formula III, in which R1 is branched or linear C1-10-alkyl or where n=0, 1 or 2 and R2 is branched or linear C1-C10C10-alkyl or C1-C4-alkoxy or C1-C4-dialkylamino in an inert solvent in the presence of a base at from 0° C. to 80° C. until the reaction has essentially proceeded to completion, and to the compounds of the formulae Ia and Ib.