Übersetzung für "Intermediate reaction" in Deutsch

An intermediate in this reaction is the lithium salt of a thiol anion of the polymer.

The methyl 2-methoxy-2-(4-methoxyphenyl)acetate is returned as intermediate to the reaction.

The hydroxyl groups present in the intermediate reaction product obtained are then etherified.

Also 3,4,5,6-tetrachloro-3,4-dihydropyridone-(2) can be formed as an intermediate in the reaction according to the invention.

However, the reaction intermediate is preferably used without work-up in step (b).

How high is the concentration of the intermediate during the reaction?

The OH-functionalised polyurethane prepolymer is chain-extended as an intermediate product by reaction with further polyisocyanates i).

The OH-functionalised polyurethane prepolymer is chain-extended as an intermediate product by reaction with further polyisocyanates d).

To complete the reaction, if appropriate after intermediate cooling, the reaction mixture can pass through the reactor more than once.

The claimed product was thus indeed formed as an intermediate during the reaction disclosed in D6.

Chemical reactions are described with chemical equations, which graphically present the starting materials, end products, and sometimes intermediate products and reaction conditions.

The Committee is aware of the fact that benzene is used as a reactant and/or a reaction intermediate in certain industries such as the fragrance industry, where its uses are acceptable provided that they are under control.

In chemistry a carbenoid is a reactive intermediate that shares reaction characteristics with a carbene.

In process step (b), the intermediate reaction product from step (a) is decomposed, in the two-phase reaction mixture obtained from step (a), by means of a diazonium salt decomposition catalyst, preferably at from 20° to 80° C., especially from 40° to 60° C., nitrogen being evolved.

It is understood that preferably, but not necessarily, any intermediate prepared in Reaction Schemes I-VIII is recovered and isolated utilizing known procedures, for example, precipitation, crystallization, chromatography or the like, prior to use in the next reaction step.

The intermediate resulting from reaction stages 1 and 2, which is reacted in stage 3 with compounds of formula III to obtain a ready-for-delivery product, only has a limited shelf life (about 24 hours) and is therefore not suitable for supply as a basis for further addition reactions.

The reaction of A1) and/or A2) with B) essentially comprises an addition reaction of B) onto A1) and/or A2), an intermediate reaction product being formed, which is then partly crosslinked.

Crosslinking is preferably carried out until at least 50 mol% of the chlorohydrin groups in the intermediate reaction product have reacted to form chloride.

The process according to the invention is characterised in that the starting compound of general formula I which is unprotected in the A-ring of the steroid system is reacted with diisobutyl aluminium hydride (DIBAH) in such quantities that all the O-containing functional groups are reduced to the hydroxyl group, after which the aluminium-containing intermediate reaction product is subjected in known manner to the selective Oppenauer oxidation to form the 3-keto compound.

It is also possible to react the oxyalkylates with epichlorohydrin, in which reaction intermediate products for the preparation of compounds of the formula I are obtained in which Y has the meaning --CH2 --CHOH--CH2 --.

This applies especially for the numerous detection processes in which hydrogen peroxide is formed as an intermediate of the reaction of a substrate with the corresponding substrate oxidase and oxygen and subsequently, in the presence of suitable chromogenic substances and mainly in the presence of a peroxidase (POD) as catalyst, is converted into a compound which can be detected optically and has a quantitative relationship to the hydrogen peroxide formed.

Not only 4-nitrotoluene-2-sulfonic acid which is used as the starting material but also 4,4'-dinitrodibenzyl-2,2'-disulfonic acid which is formed as an intermediate and the reaction product 4,4'-dinitrostilbene-2,2'-disulfonic acid are more soluble, for example among the reaction media mentioned in this process, in the abovementioned solvents or combinations a) to f) and in particular in the combination d) than in water or aprotic dipolar solvents.

The additives are gasified in the combustion front which favours, on the one hand, a decrease of the combustion temperature and, on the other hand, the formation of the intermediate reaction products producing silicon a-nitride in the combustion zone.