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weeeeeb [17]
3 years ago
8

Which of the following is the requirement for the intramolecular Sn2 reaction (intramolecular William Ether Synthesis) to occur

in your reaction? Group of answer choices Anti-periplanar The arrangement of the bromine and hydroxide does not matter. cis Z

Chemistry
1 answer:
balandron [24]3 years ago
4 0

Answer:

D. Anti-periplanar

Explanation:

In the <u>second step</u> of the intramolecular William Ether Synthesis mechanism (figure 1) we will have the attack of the negative charge of the oxygen to the carbon bond to the Br. At the same time the Br leaves, so a bond would be broken (the <u>C-Br</u> bond) and a bond would be formed (the <u>C-O</u> bond).

Now, this process can happen only if the <u>attack</u> and the <u>leaving group </u>has an anti configuration (figure 2). In an anti configuration the <u>nucleophile</u> and the <u>leaving group</u> would have <u>opposite directions</u>.

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