Given: Mass spec for 4-acetylbiphenyl. Knowing that 196 m/z is the major product, how would you assign 181 m/z and 152 m/z? (i've also attached a picture of the reaction scheme)

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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Given: Mass spec for 4-acetylbiphenyl. Knowing that 196 m/z is the major product, how would you assign 181 m/z and 152 m/z? (i've also attached a picture of the reaction scheme)

Top 5 Peaks
SPLASH
Thumbnail
181 99.99
152 65.30
196 55.80
153 36
43 20.60
splash10-0f89-2900000000-717ab61aafde57a0fef4
Intensity
100-
50
0
0
43
62.5
125
m/z
152
153
181
196
187.5
Hide Peak Labels
250
Transcribed Image Text:Top 5 Peaks SPLASH Thumbnail 181 99.99 152 65.30 196 55.80 153 36 43 20.60 splash10-0f89-2900000000-717ab61aafde57a0fef4 Intensity 100- 50 0 0 43 62.5 125 m/z 152 153 181 196 187.5 Hide Peak Labels 250
Br +
HO
HO
B
Pd(OAc)2 (catalytic)
Bu4NBr
K₂CO3, water
(E22.1)
Transcribed Image Text:Br + HO HO B Pd(OAc)2 (catalytic) Bu4NBr K₂CO3, water (E22.1)
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