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Oxidation of Alkynes

1, 2-Diols ar...

Question

$1, 2 -$ Diols are oxidized to ketones and /or aldehyde by periodic acid $H I O_{4}$ . Periodic acid reacts with vicinal diol to form a cyclic intermediate. Keto and alcohol groups at vicinal position may be oxidised in some cases. Reaction takes place because iodine is in highly positive oxidation sate (+ 7).

A

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B

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Solution

The correct option is B ~
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Q. The oxidation cleavage of 1,2-diol by a periodic acid or periodic salt to give corresponding carbonyls is known as Malaprade oxidation.

Vicinal diols can also be oxidized to form aldehydes and ketones by lead tetraacetate. This oxidation cleavage is analogous to malaprade oxidation and is known as Criegee oxidation.

When Halohydrin is treated with

A g_{2} O

or Silver salt, it gives pinacol-pinacolone type rearrangement called semi-pinacol rearrangement.
List-I contains reactions and List-II contains products that can be formed.

Which of the following options has the correct combination considering reaction in List-I and their product(s) in List-II?

Q. The oxidative cleavage of 1,2-diol by a periodic acid or periodic salt to give corresponding carbonyls is known as Malaprade oxidation.

Vicinal diols can also be oxidized to form aldehydes and ketones by lead tetraacetate. This oxidative cleavage is analogous to malaprade oxidation and is known as Criegee oxidation.

When Halohydrin is treated with

A g_{2} O

or Silver salt, it gives pinacol-pinacolone type rearrangement called semi-pinacol rearrangement.
List-I contains reactions and List-II contains products that can be formed.

Which of the following options has the correct combination considering reaction in List-I and their product(s) in List-II?

Q. The oxidative cleavage of 1,2-diol by a periodic acid or periodic salt to give corresponding carbonyls is known as Malaprade oxidation.

Vicinal diols can also be oxidized to form aldehydes and ketones by lead tetraacetate. This oxidative cleavage is analogous to malaprade oxidation and is known as Criegee oxidation.

When Halohydrin is treated with

A g_{2} O

or Silver salt, it gives pinacol-pinacolone type rearrangement called semi-pinacol rearrangement.
List-I contains reactions and List-II contains products that can be formed.

Which of the following options has the correct combination considering reaction in List-I and their product(s) in List-II?

Q. Oxidation of 2-methylpropane-1,2-diol with periodic acid gives:

Q. A vicinal diol has two alcoholic groups present :

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