| NOUN | an aldehyde group | aldehyde groups |
| SYNO | aldehyde group | aldehyde radical |
NOUN article.ind sg | pl
22 Übersetzungen
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Anwendungsbeispiele Englisch
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- Anisaldehyde is prepared commercially by oxidation of 4-methoxytoluene ("p"-cresyl methyl ether) using manganese dioxide to convert a methyl group to the aldehyde group.
- As shown in Scheme 4, the bottom part of the taxol B ring synthesis involved the reaction of ring C aldehyde group of 21.
- It has an aldehyde group and is an aldose. It is not found in nature, but its uronic acid, iduronic acid, is important.
- This step enables a Grignard reaction of the aldehyde group in 4 with methylmagnesiumbromide to the alcohol 5 which is then oxidized with the Dess-Martin periodinane to the ketone 6.
- Direct oxidation of an aldose affects the aldehyde group first.
- Aldehydes containing O-HN2 groups can serve to stabilize the abasic site by reacting with the aldehyde group.
- The addition of acrolein (blue) is a Michael reaction catalyzed by N,N-diisopropylamine, the presence of ethanol converts the aldehyde group to an acetal but this process is reversed when hydrochloric acid is introduced (red).
- It has a terminal aldehyde group rather than a ketone in its linear chain, and so is considered part of the aldose family of monosaccharides.
- However, this enzyme does not exploit the reactive aldehyde group, but instead utilizes the phosphate group on PLP to perform its reaction.
- When the hemiacetal group is reformed, the OH group on C-5 may attack either of the two stereochemically distinct sides of the aldehyde group on C-1.
- It has one aldehyde group, and is thus part of the aldose family.
- All monosaccharide ketoses are reducing sugars, because they can tautomerize into aldoses via an enediol intermediate, and the resulting aldehyde group can be oxidised, for example in the Tollens' test or Benedict's test.
- As usual, the aldehyde group is more reactive electrophile than the phenone.
- It will give a positive result for aldose monosaccharides (due to the oxidisable aldehyde group) but also for ketose monosaccharides, as they are converted to aldoses by the base in the reagent, and then give a positive result.
- Nonreducing disaccharides like sucrose and trehalose have glycosidic bonds between their anomeric carbons and thus cannot convert to an open-chain form with an aldehyde group; they are stuck in the cyclic form.
- The aldehyde group is somewhat polar. The [...] bond length is about 120-122 picometers.
© dict.cc English-German dictionary 2024
Enthält Übersetzungen von der TU Chemnitz sowie aus Mr Honey's Business Dictionary (nur Englisch/Deutsch).
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