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lab practical spring '19
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O-H
~3700-3200
N-H
~3500-3300
Csp-H
3200-3300
Csp2-H
3200-3000
Csp3-H
2900-3000
Aldehyde C-H
Two peaks at: 2900-2800 and 2800-2700
C≡N
2200
C≡C
2100
C=O
1800-1650
C=C
1670-1600
Chemical Shifts Next
R-H
1-2.5ppm
N-H, O-H
1-5ppm
C=C-H
3-7ppm
Amide-H
5-9ppm
Ar-H
6-8.5ppm
Aldehyde-H
9-10ppm
Carboxylic-H
10-13ppm
splitting
number of hydrogens within 3 sigma bonds + 1
Integration
number of hydrogens represented by a peak
General Carbon Chemical Shifts Next
C-C
0-50ppm
C-O
50-100ppm
C=C
100-150ppm
C=O
150-200ppm
Carbon Chemical Shifts Next
C=O (in ketones)
205-220ppm
C=O (in aldehydes)
190-200ppm
C=O (in acids and esters)
160-185ppm
C in aromatic groups
125-150ppm
C=C (in alkenes)
115-140ppm
RCH2O-
50-90ppm
RCH2Cl
30-60ppm
RCH2NH2
30-65ppm
R3CH
25-35ppm
CH3CO-
20-50ppm
R2CH2
16-25ppm
RCH3
10-15ppm
EAS (electrophilic aromatic substitution mechanism)
Wittig Mechanism
Oxidation Mechanism
Reduction with NaBH4 Mechanism
Reduction with L-Selectride Mechanism
Esterification (absolute configuration lab)
Aldol Condensation Mechanism
Degrees of Unsaturation (DoU) Formula
(2C + 2 + N - X - H) / 2
C= # of carbons
N= # of nitrogens
X= $ of halogens (F, Cl, Br, I)
H= # of hydrogens
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Author
jocelyn0399
ID
345950
Card Set
lab practical spring '19
Description
lab practical
Updated
2019-06-07T08:11:32Z
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