O chem question...

[sfoksn]

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Sorry for such a horrible pic quality.

I didn't know how to describe molecules in words!

It is first reacted by 1. NaOC2H5 2. CH3CHBr, then it is treated with OH-, then it is treated with H3O+ and heat.

Could you please enlighten me in details why such rxns happen at such times?

Thank you so much.

I know it's a lot to ask .

Have a nice day. 🙂

 

[sfoksn]

nobody has any ideas?

 

[newmexomfs]

Sorry for such a horrible pic quality.

I didn't know how to describe molecules in words!

It is first reacted by 1. NaOC2H5 2. CH3CHBr, then it is treated with OH-, then it is treated with H3O+ and heat.

Could you please enlighten me in details why such rxns happen at such times?

Thank you so much.

I know it's a lot to ask .

Have a nice day. 🙂

it is acetoacetic ester synthesis reaction in which u form a methyl ketone with three extra carbons and it takes place via SN2 mechanism. (chapter 22 McmUrry). First step of the reaction involves replacemtnof one of the hydrogens on the alpha carbn with the R group on alkyl halide and the second step involves decarboxylation (CO2 escapes), etoh formation and a ethyl ketone. If this doesnt make sense lemme know. I will scan the mechanism for you!

 

[sfoksn]

Thank you, newmexomfs,

I've seen the mechanism in the book as well..

But I just want to know a way to go about remembering it by making sense out of it.

Could you please help me develop a logical way of remembering this mechanism?

Thank you so much

 

[sfoksn]

bump 🙁

 

[newmexomfs]

ill email u the scanned explanation.. wat is your email?

 

[sfoksn]

thank you newmexomfs.

My email is [email protected]