Show the products of these elimination reactions and indicate which is major: CI OTS H,0 CH;OH HO + E:OH + CH;0 a) b) CI ELOH + CH,CH,0 sesmart c) PROBLEM 9.8 The reaction of 2-bromobutane with ethoxide ion in ethanol gives 81% of a mixture of (Z)- and (E)-2-butene. Explain which stereoisomer you expect to predominate in this mixture.

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do problem 8! this problem consists of 9.7 and 9.8!!

**Problem 9.7**

Show the products of these elimination reactions and indicate which is major:

a) A cyclohexane derivative with a chlorine (Cl) substituent reacts with hydroxide ion (OH⁻) in a mixture of water (H₂O) and ethanol (EtOH).

b) A linear alkane with an OTs group reacts with methoxide ion (CH₃O⁻) in methanol (CH₃OH).

c) A branched alkane with a chlorine (Cl) substituent reacts with ethoxide ion (CH₃CH₂O⁻) in ethanol (EtOH).

**Problem 9.8**

The reaction of 2-bromobutane with ethoxide ion in ethanol gives 81% of a mixture of (Z)- and (E)-2-butene. Explain which stereoisomer you expect to predominate in this mixture.
Transcribed Image Text:**Problem 9.7** Show the products of these elimination reactions and indicate which is major: a) A cyclohexane derivative with a chlorine (Cl) substituent reacts with hydroxide ion (OH⁻) in a mixture of water (H₂O) and ethanol (EtOH). b) A linear alkane with an OTs group reacts with methoxide ion (CH₃O⁻) in methanol (CH₃OH). c) A branched alkane with a chlorine (Cl) substituent reacts with ethoxide ion (CH₃CH₂O⁻) in ethanol (EtOH). **Problem 9.8** The reaction of 2-bromobutane with ethoxide ion in ethanol gives 81% of a mixture of (Z)- and (E)-2-butene. Explain which stereoisomer you expect to predominate in this mixture.
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