A substrate, RX, reacts with a strong base :B", undergoing an E2 elimination. Which of the following is true regarding the mechanism of this reaction? Select one: A. The mechanism is one-step mechanism, with the substrate ejecting HX in a unimolecular process (without help from strong base). B. The mechanism is two-step, with RX forming a carbocation in the first, slow step. C. The mechanism is one-step with RX and :B reacting together in this step. D. The mechanism is two-step, with :B- removing a beta hydrogen ion from RX in step 1 (fast step), followed by the slow loss of X- from the intermediate formed in the first step.

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A substrate, RX, reacts with a strong base :B-,
undergoing an E2 elimination. Which of the
following is true regarding the mechanism of
this reaction?
Select one:
A. The mechanism is one-step
mechanism, with the substrate ejecting
HX in a unimolecular process (without
help from strong base).
B. The mechanism is two-step, with RX
forming a carbocation in the first, slow
step.
C. The mechanism is one-step with RX
and :B reacting together in this step.
D. The mechanism is two-step, with :B-
removing a beta hydrogen ion from RX
in step 1 (fast step), followed by the
slow loss of X- from the intermediate
formed in the first step.
Transcribed Image Text:A substrate, RX, reacts with a strong base :B-, undergoing an E2 elimination. Which of the following is true regarding the mechanism of this reaction? Select one: A. The mechanism is one-step mechanism, with the substrate ejecting HX in a unimolecular process (without help from strong base). B. The mechanism is two-step, with RX forming a carbocation in the first, slow step. C. The mechanism is one-step with RX and :B reacting together in this step. D. The mechanism is two-step, with :B- removing a beta hydrogen ion from RX in step 1 (fast step), followed by the slow loss of X- from the intermediate formed in the first step.
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