91Ó°ÊÓ

Question:The cis and trans isomers of 2-butene give different cyclopropane productsin the Simmons–Smith reaction. Show the structures of both, and

explain the difference.

Question:Predict the products of the following reactions. Don’t worry about thesize of the molecule; concentrate on the functional groups.

Question:The addition of HCl to 1-methoxycyclohexene yields 1-chloro-1-methoxycyclohexane as a sole product. Use resonance structures of the carbocation intermediate to explain why none of the alternate regioisomers isformed.

Question:How would you carry out the following transformations? Tell what

reagents you would use in each case.

(a)

Question:How would you carry out the following transformations? Tell what

reagents you would use in each case.

(b)

Question:How would you carry out the following transformations? Tell what

reagents you would use in each case.

Show the structures of alkenes that give the following products on oxidative cleavage with in acidic solution:

$a.C{H}_{3}C{H}_{2}C{O}_{2}H+C{O}_2$

Question:Show the structures of alkenes that give the following products on oxidative cleavage with in acidic solution

$b.\left(C{H}_3\right)2C=O+C{H}_{3}C{H}_{2}C{H}_{2}C{O}_{2}H$

Question:Show the structures of alkenes that give the following products on oxidative cleavage with KMnO₄ in acidic solution:

c.

Show the structures of alkenes that give the following products on oxidative cleavage with in acidic solution.