In this reaction how can isocynide form ...?it is primary amine na the product of the reaction?

just like it

here Azide ion is nucleophile and attack on carbony carbon. now wolff rearrangement takes place and isocyanate is formed

got it??

wolff rearrangment ?

yes, like this..

yes sir but here how migratory aptitude works

which group migrate first decided by migratory aptitude

you have to remember migratory aptitude order.

sir here NH why not attached to the C having 3 Hydrogen

because migratory aptitude of benzene ring is more than CH3

ohhh I got it sir

sir in which case the migratory aptitude is applied

wait..

ok sir

it will work in asymmetric ketone. if both the groups are different then check the migratory aptitude. NH adds on those groups side of C=O which have more migratory aptitude

got it??

check this example

now got it??😊

yes sir I m asking that like in Baeyer villiger oxidation and this schmidt rearrangment ...like that in which cases it use

only for ketone or any other compounds

only in asymmetric ketone

ether ...ester ....and in alkene ..?is it works or not

no, simun apply it only on ketone

no sir I m not asking about this reaction I m generally asking migratory aptitude rule works on which which compounds

all the rearrangement have different migratory aptitude. so accordingly we will apply according to that rearrangement

ohhh so migratory aptitude is diff for diff reaction ?

yes yes😊😊

ohhh...finally my confusion is clear ...tq sir ..🙏🙏

you welcome 😊

Isocyanate is formed as an intermediate

yes sir

here migratory aptitude how can work

Migratory aptitude is experimentally determined. With little change in the subtrate they see the product formed and accordingly they have given the order of migratory aptitude

Have you studied migratory aptitude in Bayer villiger oxidation

See the marked step. There is migration of R.

yes

Migration step is called Wolff rearrangement Simun

ok sir