Aldehydes and ketones. Acetals and ketals (7)

Organic chemistry: Nucleophilic attack on aldehydes and ketones; the three main categories of nucleophilic attack. An example of category 1: attack by a Grignard to form an alcohol. An example of category 2: attack by alcohol to form an acetal or ketal. An example of category 2, reverse reaction: reaction of an acetal or ketal with aqueous acid to form an aldehyde or ketone. How treatment of reagents with acid or base affects reactivity

The labels "category 1", "category 2", and "category 3" are terms I made up; they are not standard terminology in organic chemistry.

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(1) Nucleophilic attack on aldehydes and ketones. Three categories of nucleophilic attack
(2) Continued
(3) An example of category 1: attack by a Grignard to form an alcohol
(4) An example of category 2: attack by alcohol to form an acetal or ketal
(5) Continued
(6) Continued
(7) Continued
(8) Continued
(9) An example of category 2, reverse reaction: reaction of an acetal or ketal with aqueous acid to form an aldehyde or ketone
(10) Continued
(11) How treatment of reagents with acid or base affects reactivity
(12) Continued
(13) Continued

Category:

Education

Tags:

• organic
• chemistry
• aldehyde
• ketone
• nucleophilic
• attack
• hemiacetal
• hemiketal
• acetal
• ketal
• hidden
• carbonyl
• protecting
• group
• acid
• base
• mechanism

[19Biohazard88]

why does he use the sulfuric acid anion to accept a proton? water makes a more stable (less acidic) acid than sulfuric acid?

Anyway great video!

[ithinkamcool]

lol @ birdman..good video. keep it up!