this is a witiig lab. starting agents are 9-anthracene-carboxaldehyde and benzyltriphenylphosphorium. the product is trans-9-(2-phenylethanyl)anthracene.

Organic Chemistry
9th Edition
ISBN:9781305080485
Author:John E. McMurry
Publisher:John E. McMurry
Chapter20: Carboxylic Acids And Nitriles
Section20.SE: Something Extra
Problem 20VC: Electrostatic potential maps of anisole and thioanisole are shown. Which do you think is the...
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this is a witiig lab. starting agents are 9-anthracene-carboxaldehyde and benzyltriphenylphosphorium. the product is trans-9-(2-phenylethanyl)anthracene.

3) Does your 'H NMR show any leftover aldehyde starting material? When alkenes are conjugated to
aromatic rings, the protons shift downward. Which signals do you think is resulting from the alkene
protons? Some signals may be overlapping.
Transcribed Image Text:3) Does your 'H NMR show any leftover aldehyde starting material? When alkenes are conjugated to aromatic rings, the protons shift downward. Which signals do you think is resulting from the alkene protons? Some signals may be overlapping.
1.00
8.04
0.00
0.00
14
12
10
2
-2 PPM
USER: Sofiia an- DATE: 03/21/22 (14:57)
OFI: 540.0
INA: 16
PTSI4: 8192
SWI: 1578
PW: 12.6 us
G.ppe
PD: 3.0 sec
LB: 0.0
699'6
9.274
960'6
- 8.780
8 731
299 8
8.513
8.118
69L7
1:261
Transcribed Image Text:1.00 8.04 0.00 0.00 14 12 10 2 -2 PPM USER: Sofiia an- DATE: 03/21/22 (14:57) OFI: 540.0 INA: 16 PTSI4: 8192 SWI: 1578 PW: 12.6 us G.ppe PD: 3.0 sec LB: 0.0 699'6 9.274 960'6 - 8.780 8 731 299 8 8.513 8.118 69L7 1:261
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