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What is major product formed when 3,3-dimethyl -2-butanol is heated in the presence of H_(2)SO_(4). |
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Answer» Solution :Saytezeff's rule: During intramolecular dehydration, if there is possibility to form a CARBON- carbon double bond at different locations, the preferred location is the one that gives the more (highly) SUBSTITUTED alkene i.e., the stable alkene. For EXAMPLE, the dehydration of 3,3-dimethyl -2- butanol gives a mixture of alkenes. The secondary carbocation, FORMED in this reaction undergoes rearrangement to form a more stable tertiary carbocation. 
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