predict the product

38 Answers

1
voldy ·

and for beckmann we need acidic mdm no ? it's migration towards electron deficient nitrogen

1
prateek punj ·

in the mechanism, removal of H2O takes place thats why i have made this shortcut of removal of water(H2O).......

3
msp ·

can u give me the full mechanism or if it is a name reaction can u give me the name

1
prateek punj ·

hey u can find the reaction in NCERT in reactions of aldehyde with ammonia derivatives....

3
msp ·

tx for the information da

1
prateek punj ·

ur wlcm.....

1
voldy ·

so wats the answer. ????sky has givne it only thing is she has hydrolysed without using water. that's where water comes in , with LiAlH4 we don't get sky's product but we get it on hydrlysis.

1
Siddharth ·

I think Sky is correct.

When ketone reacts with primary amine we get Imine and not oxime. Hence Beckman rearrangement is not possible even in the absence of LiAlH4.

When Imine is reduced with LiAlH4 what we get is amine (in this case secondary amine. I notice that the final product has a chiral carbon

1
gagar.iitk ·

sankara can u post the ans i am not getting it plz

1
skygirl ·

no no not oxime... i told 'oxime like' [1]

3
msp ·

but y da y shud we remove tow Hs and replace it with an atom of O

3
msp ·

sorry for the late response sir the ans shud be

3
msp ·

1
prateek punj ·

but buddy i think the first step shud be the formation of oxime...
which will get reduced in second step after rxn with LiAlH4...........

3
msp ·

is there any rong da

1
prateek punj ·

i couldn't got u....

1
prateek punj ·

might be water may be present for providing the medium only.....

1
pankaj sachan ·

i think skygirl has given correct answer.

1
prateek punj ·

guys beckmann willn't be there...

there is something else....

@pankaj....
can u just find the use of water in this reaction.....

1
prateek punj ·

tell me if i'm wrong....
But i think this the procedure....

3
msp ·

LIAlH4

1
skygirl ·

1
skygirl ·

1
prateek punj ·

yaar how oxygen can be replaced....

1
skygirl ·

arey.... oxime like reaction ...

i forgot name [2]

3
msp ·

SKY WONT THE C doublebond O IS STRONGER

1
Harry Potter ·

YES SANKARA itz stronger!!!!!!!

1
skygirl ·

i will ask them n tell [3]

but thiis happens .....

arey this has some name...!

commonn reaction...

1
prateek punj ·

arey, i got it....

Firstly, it react with CH3NH2 to form oxime....

Which the rxn with LiAlH4 result into 2 degree aminel....

Which will then follow beckmann rearrangement with OH- ion of water.....

1
prateek punj ·

yaar, is it LAH or LiAlH4

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