[PDF] aldehydes and ketones undergo nucleophilic addition reactions why

Both aldehydes and ketones undergo nucleophilic addition. It is because both compounds have a carbonyl group,>C=O. The oxygen atom in the carbonyl group is electronegative. The bonded pairs of electrons are more towards the oxygen than the carbon atom.
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  • Why do aldehydes and ketones undergo nucleophilic addition reaction more readily than ketones?

    For steric and electrical reasons, aldehydes are more reactive than ketones in nucleophilic addition processes. In ketones, the presence of two relatively big substituents makes it more difficult for a nucleophile to access the carbonyl carbon than in aldehydes with only one such substituent.

  • Why aldehydes and ketones undergo nucleophilic addition while alkenes undergo electrophilic addition?

    Answer: Alkenes undergo electrophilic addition, whereas aldehydes and ketones undergo nucleophilic addition because, in alkenes, the double bond joins two carbon atoms, and there is no resultant polarity. While in carbonyl compounds, the double bond joins atoms having different polarities.

  • Do aldehydes and ketones undergo nucleophilic substitution?

    Once a tetrahedral intermediate is formed, aldehydes and ketones cannot reform their carbonyls. Because of this, aldehydes and ketones typically undergo nucleophilic additions and not substitutions.
  • This is because catalysis helps in the generation of cyanide ion (CN) which acts as a stronger nucleophile and adds to carbonyl compounds to produce the corresponding cyanohydrin.
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Carbonyl Chemistry (12 Lectures) Aldehydes and Ketones

nucleophilic addition to carbonyl compounds; however other nucleophiles can undergo the same reaction. • There are other acid- and base-catalyzed examples.



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Since aldehydes and ketones both possess the carbonyl functional group they undergo similar chemical reactions. 1. Nucleophilic addition reactions.



Aldehydes Aldehydes Ketones and Carboxylic Carboxylic Acids

Since aldehydes and ketones both possess the carbonyl functional group they undergo similar chemical reactions. 1. Nucleophilic addition reactions.



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Nucleophilic Addition of Alcohols: Acetal Formation. Aldehydes and ketones undergo a reversible reaction with alcohols in the presence of an acid.



SCH 206

Aldehydes and ketones undergo nucleophilic addition reactions with amines to initially form carbinolamines. The carbinolamine intermediate is unstable and 



Chem 353: Aldol condensation

Recall that aldehydes and ketones typically undergo nucleophilic addition reactions. The aldol reaction demonstrates how carbonyl compounds can react as 



Chem 353: Aldol condensation

Recall that aldehydes and ketones typically undergo nucleophilic addition reactions. The aldol reaction demonstrates how carbonyl compounds can react as 



Organic Chemistry Second Edition

Nucleophilic substitutions are reactions which involve the substitution of Aldehydes and ketones undergo nucleophilic addition rather than nucleo-.



16: Addition and Substitution Reactions of Carbonyl Compounds

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ALDEHYDES KETONES AND CARBOXYLIC ACIDS 27

Ketones. Aldehydes and ketones undergo nucleophilic addition reactions with monohydric alcohols to yield hemiacetals. In this reaction the carbonyl oxygen 

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