Why in case of pinacol pinacolone rearrangement mechanism when c+ form in stable position why bond sifting occurs ?

sir in my book also their is no reaction given like this which product is aldehyde

later I'll check if some examples given in my books

ok sir tq sir

I will clear your doubts for sure.

just you respond and my answer

Now you tell me which carbocation is more stable

3degree

the 2nd one

Correct. now rearrangement will only be possible if there is formation of more stable carbocation

Now you tell me is rearrangement is possible

?

please respond other wise your doubts will remain forever

i will help you dear. please respond

See this.

Answer to your previous question which Dinesh answered incorrectly.

but sir aldehyde can't form na

it always gives ketones

why not ?

That's why mechanism is important

I m checking it sir

I wanted to correct you step by step but you were not responding so i answered it completely

but sir in 2nd steep why H migrate to carbocation

Is there any other possibility Simun

?

I can't understand

See once again I am saying carbocation rearrange tabhi hoga jab stable carbocation banega. Here mesomeric carbocation ban raha hai.

see this

ok sir

but sir in books and is ketone of the reaction

i didn't get

ans of the question means the product of the reaction is ketone .?

in books

Product is definitely aldehyde. please trust me

but sir in books in ketone so I asked

For this if product is Ketone then it is definitely wrong

ok ..sir

Please mechanism isiliye important hota hai.

yes sir I will do mechanism

https://youtu.be/5Ujj265D0HU

See this Simun 😊

i have seen this sir

Then you must have listened that mesomeric carbocation don't undergo for rearrangement

?

yes

Then you can solve the problem.

yes except this question

No Simun don't think this is exception. Go by mechanism. you will not do mistake

Solve this & so your product

ok sir

here we will see the migratory aptitude of groups

if possible the ring expansion takes place

but sir we will remove OH to from stable c+ na so why next rearrangment takes place

next rearrangement to get most stable carbocation

we rearranged the carbanion untill we can't get most stable carbocation

sir in this case the carbocation is 3 degree so why further the rearrangment or shifting of CH3 occurs

wait I'm explaing this

check this

always remember stability order of carbocation which we have discussed in previous query 😊

got it Simun??😊😊

yes sir ...if stable then it is possible na

yes, we have to make most stable carbocation. in pinacole pinacolone rearrangement substituted carbocation is formed so we shift group

now understood concept?

Simun check this rearrangement notes, this will help you to understand concepta

yes sir I got it but sir pls check the comment of suman sir he told that aldehyde also form in some case

wait..

ok sir

this was the question you've sent yesterday 😊

yes sir

so I m confused on that question sir 2 mechanism are come for this so

Simun you can my solution it is always based on comcepts and reference source so i always provide references also

I know sir and I have done this

😊👍

but after seeing this I m confused so I asked

yes sir he told ring expansion Hoga hi nahi tho ..I m confused

yes sir I m also confuse on that because my product is ketone