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Propan-1-ol to propan-2-ol
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How would you convert propan-1-ol to propan-2-ol??? I have absolutely no clue!
I have to include the reaction equations and conditions for the steps involved (more than 1 i guess)
My best idea so far is something along the lines of 'move the OH group'. Hmmm....oh dear!
This is AS unit 2 by the way, for Edexcel. Seems a bit hard to me!
I have to include the reaction equations and conditions for the steps involved (more than 1 i guess)
My best idea so far is something along the lines of 'move the OH group'. Hmmm....oh dear!
This is AS unit 2 by the way, for Edexcel. Seems a bit hard to me!
Reply 1
No easy direct way.
1. Propan-1-ol + H3PO4 --> Propene (this is a dehydration reaction, elimination creating a double bond)
2. Propene + H2O(steam) ---> Propan-2-ol (Markovnikov addition using a catalyst of H3PO4 on a bed of Alumina - I think)
Alternative possibliity for step 2 is to use concentrated H2SO4 at 0ºC
CH2=CHCH3 + H2SO4 --> CH3CH(OSO2OH)CH3
then add water and warm
CH3CH(OSO2OH)CH3 + H2O ---> CH3CH(OH)CH3 + H2SO4
1. Propan-1-ol + H3PO4 --> Propene (this is a dehydration reaction, elimination creating a double bond)
2. Propene + H2O(steam) ---> Propan-2-ol (Markovnikov addition using a catalyst of H3PO4 on a bed of Alumina - I think)
Alternative possibliity for step 2 is to use concentrated H2SO4 at 0ºC
CH2=CHCH3 + H2SO4 --> CH3CH(OSO2OH)CH3
then add water and warm
CH3CH(OSO2OH)CH3 + H2O ---> CH3CH(OH)CH3 + H2SO4
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