Alkene : Direct Hydration using acid

[jmarjorie]

In the direct hydration of Alkenes using an acid ( mineral or organic ) as catalyst in aqueous conditions,what is the ideal Molarity, quantity of acid, reaction conditions and yield ? Is this an efficient process for say, the isoprene derivative, a diene, CH2=C(CH3) CH CH2 CH2 C(CH3)CH=CH2 , which is soluble in Ethanol and using dil H2SO4.

[chuinhen]

Depends on what is the producy you want.

 

1)Intramolecular Hydration

 

temp :180C

reagent :Concentrated Sulphuric acid

 

PRODUCT : ALKENE

 

 

 

2)Intermolecular Hydration

 

temp :140C

reagent :Sulphuric Acid

 

PRODUCT : ETHER