Translation for 'nitration' from English to Czech

nitration {noun}

nitrace {f}chem.

• Nitronium tetrafluoroborate is used as a nitration agent.
• One important use of oleum as a reagent is the secondary nitration of nitrobenzene.
• Direct nitration of aniline is inefficient since anilinium is produced instead.
• It is prepared by nitration of m-xylene followed by hydrogenation.
• 1) "Direct Nitration of Glycol" is carried out in exactly the same manner, with the same apparatus, and with the same mixed acids as nitration of glycerine.

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• The nitration product produced on the largest scale, by far, is nitrobenzene.
• Complete nitration of benzene is practically impossible because the nitro groups are deactivating groups for further nitration.
• Similar results were also observed on the nitration of 3-methylbenzoic acid in which 5-methyl-2-nitrobenzoic acid and 3-methyl-2-nitrobenzoic acid were obtained as the major compounds, whereas 3-methyl-4-nitrobenzoic acid was reported as a minor compound.
• Excessive nitration of 2,6-diaminopyrazine ends up with tetraketopiperazine.
• With aryl chlorides, triflates and nonaflates, ipso nitration may also take place.

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• The Menke nitration is the nitration of electron rich aromatic compounds with cupric nitrate and acetic anhydride.
• However, it undergoes hydrolysis upon reflux in aqueous KOH to afford phenol, and undergoes aromatic nitration to afford the "meta"-nitration product, as expected for a strongly –"I", –"M" substituent.
• 1,3-Dinitrobenzene is accessible by nitration of nitrobenzene.
• Direct nitration of pyridine is sluggish. Pyridine derivatives wherein the nitrogen atom is screened sterically and/or electronically can be obtained by nitration with nitronium tetrafluoroborate (NO2BF4).
• The nitration of benzaldehyde produces mostly 3-nitrobenzaldehyde, with yields being about 19% for the ortho-, 72% for the meta- and 9% for the para isomer.

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• The product of this reaction can undergo a second nitration to form dinoseb.