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Which reaction can follow E1 and E2 mechanism?
What is E1 reaction in synthesis of an alkene?
What is the E1 reaction in organic chemistry?
One way to synthesize alkenes is by dehydration of alcohols, a process in which alcohols undergo E1 or E2 mechanisms to lose water and form a double bond. The dehydration reaction of alcohols to generate alkene proceeds by heating the alcohols in the presence of a strong acid, such as sulfuric or phosphoric acid, at high temperatures.
Apr 30, 2018 · This organic chemistry video tutorial provides a basic introduction into the E1 reaction mechanism. It includes example problems with carbocation rearrangements such as the hydride shift,...
- 13 min
- 209.1K
- The Organic Chemistry Tutor
Dehydration of Tertiary and Secondary Alcohols Follow E1 Mechanism. Let’s start with tertiary alcohols which follow E1 mechanism: The first step of the reaction is the protonation of the hydroxyl group which converts the OH into a good leaving group by weakening the C-O bond:
Sep 5, 2018 · Under appropriate conditions (strong acid, 2° or 3° alcohol), alcohol dehydration can occur by an E1 (or unimolecular elimination) mechanism. Elimination describes the loss of two substituents from a molecule (-OH and –H), forming a double bond. Unimolecular describes the kinetics of the reaction.
Alcohols can also react via an E1 mechanism. The carbon that's bonded to the OH would be the alpha carbon, and the carbon next to that would be the beta carbon, so reacting an alcohol with sulfuric acid and heating up your reaction mixture will give you an alkene, and sometimes, phosphoric acid is used instead of sulfuric acid.
- 13 min
- Jay
