Wittig Reaction*PPH3PPH3NaNH2H.+ BrH.+ NH3 + NaBrPPH3H.THE+ PH3PODo you expect benzaldehyde or stilbene to travel farther on a TLC plate? Please explain, being sure to mentionimportant intermolecular interactions.Why do we need to do a recrystallization after running the column chromatography?Assign the characteristic signals on the following IR spectrum.100BIO-RAD95 -908580trans-Stilbene757065604000350030002500200015001000500WavenumbersWhy did we need to exclude water from the reaction? What would happen if too much water was present?% Transmittance3082.43025.11595.9691.4

"Since there are multiple questions and it is not mentioned that which one has to be solved so I am…

Answered: Do you expect benzaldehyde or stilbene…

Do you expect benzaldehyde or stilbene to travel farther on a TLC plate? Please explain, being sure to mention important intermolecular interactions.

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter89: Thin-layer Chromatography

Section: Chapter Questions

Problem 1P

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Question

Wittig Reaction
*PPH3
PPH3
NaNH2
H.
+ Br
H.
+ NH3 + NaBr
PPH3
H.
THE
+ PH3PO
Do you expect benzaldehyde or stilbene to travel farther on a TLC plate? Please explain, being sure to mention
important intermolecular interactions.
Why do we need to do a recrystallization after running the column chromatography?
Assign the characteristic signals on the following IR spectrum.
100
BIO-RAD
95 -
90
85
80
trans-Stilbene
75
70
65
60
4000
3500
3000
2500
2000
1500
1000
500
Wavenumbers
Why did we need to exclude water from the reaction? What would happen if too much water was present?
% Transmittance
3082.4
3025.1
1595.9
691.4

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