Aldehydes And Ketones Flashcards

1
Q

Toulene with acetic anhydride and chromium oxide give

A

benzaldehyde

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2
Q

Gatterman Koch reaction reagent and product

A
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3
Q

aldehydes or ketones, Hydrocarbon,alcohol boiling point

A
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4
Q

Does aldehydes have odour !? if yes! Which kind lower/higher

A

yes aldehydes have odour a pungent which is inversely proportional to the number of carbons, the lower aldehydes

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5
Q

Structure of vanilla

A
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6
Q

Addition of HCN to ketone followed by H3O+

A

adding HCN to ketone would fform a cyanohydrin which then followed by H3O+ will form a carboxylic acid on the C which was attached to N

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7
Q

Strecker synthesis gives

A

Amino Acids

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8
Q

Aldehyde/ketones with alcohol forms ___ and what does it changes to and why

A

hemiacetal and it changed to acetal as hemiacetal is unstable

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9
Q

How are aldehydes protected and how are they released again?

A

the cyclic ketal formed with addition of ethan-di-ol protects the ketone and it can be changed again to ketone by adding water

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10
Q

Addition of water to ketones/aldehydes

A

gem diol is formed

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11
Q

Ninhydrin test is for what compounds, whats the structure of ninhydrin and whats the color of the product

A

the test is for primary amine or NH3

the color is purple blue

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12
Q

If hydroxylamine is added to ketone/aldehyde

A

oxime is formed by dehydration

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13
Q

If hydrazine is added to ketone/aldehyde

A

hydrazone is formed by dehrdration

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14
Q

If phenylhydrazine is added to ketone/aldehyde

A

phenylhydrazone

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15
Q

Beckman rearrangement in oximes

A
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16
Q

Aldol reaction shortcut

A
17
Q

Intramolecular aldol condensation

A
18
Q

Cannizaro reaction what happens

A
19
Q

Whats the major product for formaldehyde and why?

A

Oxidation product

HCOOH

cause ther eis no grp to reduce the delta +ve charge on the carbonyl carbon

20
Q

Intramolecular cannizaro

A
21
Q

Perkin reaction

A
22
Q

Tiochenko reaction

A
23
Q

Carbonyl compound reaction with PCl5

A
24
Q

acid chloride with Pd BaSO4 + H2 forms

A

Aldehyde

25
Q

Bayer Villager Oxidation reaction?

A
26
Q

whats the migratory aptitude order of some functional grp

A