In an E2 elimination reaction, the leaving group and the hydrogen atom must be anti-coplanar for this concerted reaction to occur. Identify which of the following structures has the hydrogen atom and the leaving group aligned anti-coplanar. Br CH3 Ph. H Ph. Ph Ph HU Br HU Ph -H = H I- A) | Br Br B) II C) III 99 Ph. H Ph CH3 OH

Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
Chapter14: Elimination
Section: Chapter Questions
Problem 18E
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In an E2 elimination reaction, the leaving group and the hydrogen atom must be anti-coplanar for
this concerted reaction to occur.
Identify which of the following structures has the hydrogen atom and the leaving group aligned
anti-coplanar.
Br
CH3
Ph.
H
Ph.
Ph
Ph
HU
Br
HU
Ph
-H =
H
I-
A) |
Br
Br
B) II
C) III
99
Ph.
H
Ph
CH3
OH
Transcribed Image Text:In an E2 elimination reaction, the leaving group and the hydrogen atom must be anti-coplanar for this concerted reaction to occur. Identify which of the following structures has the hydrogen atom and the leaving group aligned anti-coplanar. Br CH3 Ph. H Ph. Ph Ph HU Br HU Ph -H = H I- A) | Br Br B) II C) III 99 Ph. H Ph CH3 OH
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