(b, c)Both 1-propanol and 2-propanol give propene on acid-catalyzed dehydration.(d)Carbon-3 has no hydrogens in 2,3,3-trimethyl-2-butanol. Elimination can involve only thehydroxyl group at C-2 and a hydrogen at C-1.5.13(b)Elimination can involve loss of a hydrogen from the methyl group or from C-2 of the ring in1-methylcyclohexanol.According to the Zaitsev rule, the major alkene is the one corresponding to loss of a hydrogenfrom the alkyl group that has the smaller number of hydrogens. Thus hydrogen is removedfrom the methylene group in the ring rather than from the methyl group, and 1-methylcyclo-hexene is formed in greater amounts than methylenecyclohexane.(c)The two alkenes formed are as shown in the equation.The more highly substituted alkene is formed in greater amounts, as predicted by Zaitsev’srule.5.142-Pentanol can undergo dehydration in two different directions, giving either 1-pentene or
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This note was uploaded on 09/20/2011 for the course CHM 2210 taught by Professor Reynolds during the Spring '01 term at University of Florida.