Question

Ch3-ch2-oh---ch2= ch2-h2o mechanisms of this rxn

Answer 1

Answer: First you need to convert Ethanol to 1-Haloethane then only you can make that product.

Answer 2

Answer:

The –OH group in the alcohol donates two electrons to H

+

from the acid reagent, forming an alkyloxonium ion. This ion acts as a very good leaving group which leaves to form a carbocation. The deprotonated acid (the nucleophile) then attacks the hydrogen adjacent to the carbocation and form a double bond.Primary alcohols undergo bimolecular elimination (E

2

mechanism) while secondary and tertiary alcohols undergo unimolecular elimination (E

1

mechanism). Oxygen donates two electrons to a proton from sulfuric acid H

2

SO

4

, forming an alkyloxonium ion. Then the nucleophile HSO

4

–

back-side attacks one adjacent hydrogen and the alkyloxonium ion leaves in a concerted process, making a double bond.