Carbocations El elimination

Polar solvents also favour El reactions because they stabilize the intermediate carbocation. El eliminations from alcohols in aqueous or alcohol solution are particularly common, and very useful. 

Polar solvents also favour El reactions because they stabilize the intermediate carbocation. El eliminations from alcohols in aqueous or alcohol solution are particularly common and very useful. An acid catalyst is used to promote loss of water, and in dilute H2SO4, H3PO4, or HCl the absence of good nucleophiles ensures that substitution does not compete. With phosphoric acid, for example, the secondary alcohol cyclohexanol gives cyclohexene. 

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See also in sourсe #XX -- [ , , , , ]

See also in sourсe #XX -- [ , , , , ]

See also in sourсe #XX -- [ , , , , ]

See also in sourсe #XX -- [ , , ]

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