CHM 2210 - Spring 2018 Quiz 9 1. Which of the following statements is NOT true?

Question

CHM 2210 - Spring 2018 Quiz 9 1. Which of the following statements is NOT true? A. Methyl alkyl halides can only undergo substitution reactions B. Heat generally favors elimination products C. iso-propoxide is an appropriate base for E2 reaction:s D. Ethanol is an appropriate base for E1 reactions E. E1 reactions must have an anti-coplanar arrangement F. All are true 2. Which of the following is appropriate for the formation of a Zaitsev elimination product? A. Triethylamine propoxide D. Methoxide E. Ace B. Methano C. Iso-

Explanation / Answer

Ans 1. (E) is NOT true as in E1 reactions the geometry is not required because in E1 reactions the first step is the removal of leaving group to form a carbocation. Now the removal of H from any geometric arrangement will give an olefin.

Ans 2.(D) As methoxide ion is a smalll and strong base hence it can squeeze into a molecule to pick an H to give a more substituted olefin.

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