0243Pb50an-09 - contain a partial monosubstituted double...

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OTs H H CH 3 CH 2 H A OTs OTs H H CH 2 CH 3 CH 3 EtO - Na + EtOH CH 3 H B OEt + Major Minor E trans Z cis There two unfavorable gauche interactions in the conformation B and only one in the conformation A . Therefore, the formation of the isomer is favored. + Of course, 1-pentene will be a minor isomer, as the transition state leading to it will
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Unformatted text preview: contain a partial monosubstituted double bond, not a partial disubstituted double bond as in the transition states leading to both isomers of 2-pentene. Answers to Problem 50, Chemistry 0243 - 2009 S N 2 E2...
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