question_answer 7)

Predict the major product of acid catalyzed dehydration of (i) 1-methylcyclohexanol (ii) butan-1-ol In acid catalyzed dehydration process a molecule of water is liberatedaccording to Saytzeff'srule i.e., results in the formation of moresubstituted alkene.  

Answer:

(i)   (ii) Note *OH from  atom and H from  atom is eliminated. (i) According    to   Saytzeff's   rule,    major   product   is1-methyl-cyclohexene, since it is more substituted. (ii) Major product is but-2-ene due to rearrangement to give secondarycarbocation, which is more stable.