Which of the following mechanisms is preferred for the electrophile shown below?

Question

Quizplus · Accepted Answer

The electrophile shown in the image contains a positive charge on the nitrogen atom, making it a good candidate for a nucleophilic attack. The preferred mechanism for this type of electrophile is an S_N2 reaction, which involves a simultaneous attack of a nucleophile on the electrophile and a leaving group leaving from the opposite side. Option B depicts an S_N2 reaction, while option A depicts an S_N1 reaction, which is not preferred for this type of electrophile. Therefore, the best choice is option B.

Which of the Following Mechanisms Is Preferred for the Electrophile