The following steps, which are in no particular order, have been proposed for the initiation and propagation of a radical chain-reaction mechanism. Br BuzSn. + Bu,Sn-Br + H H-SnBu3 •SnBug + + H,C CH, С — CN CH3 N=N + NEN 2 H3C-C H3C CN H3C CN CH3 CH3 H-SnBu3 + •SnBu, + H3C `CN H,C CN (a) Draw in the appropriate curved arrows for each step. (b) Label each step as either initiation or propagation. (c) Write the balanced net reaction. (d) Provide two plausible termination steps, including curved arrows.

Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
Chapter15: Radical Reactions
Section: Chapter Questions
Problem 20CTQ
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The following steps, which are in no particular order, have been proposed for the initiation and propagation of a radical
chain-reaction mechanism.
Br
BuzSn. +
Bu,Sn-Br +
H
H-SnBu3
•SnBug
+
+
H,C CH,
С — CN
CH3
N=N
+ NEN
2
H3C-C
H3C
CN
H3C CN
CH3
CH3
H-SnBu3
+ •SnBu,
+
H3C
`CN
H,C
CN
(a) Draw in the appropriate curved arrows for each step.
(b) Label each step as either initiation or propagation.
(c) Write the balanced net reaction.
(d) Provide two plausible termination steps, including curved arrows.
Transcribed Image Text:The following steps, which are in no particular order, have been proposed for the initiation and propagation of a radical chain-reaction mechanism. Br BuzSn. + Bu,Sn-Br + H H-SnBu3 •SnBug + + H,C CH, С — CN CH3 N=N + NEN 2 H3C-C H3C CN H3C CN CH3 CH3 H-SnBu3 + •SnBu, + H3C `CN H,C CN (a) Draw in the appropriate curved arrows for each step. (b) Label each step as either initiation or propagation. (c) Write the balanced net reaction. (d) Provide two plausible termination steps, including curved arrows.
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