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CHEM 2211: Study Guide
C–H |
3300-2700 |
C–N |
1230-1020 |
C–O |
1250-1050 |
N–H |
3500-3300 |
O–H
Carboxyl group |
3300-2500 |
O–H
Alcohol |
3650-3200 |
4000-3000 |
single bond |
3000-2000 |
Triple Bond |
2000-1500 |
Double bond |
1600, 1500-1430 |
arene ring |
3650-3200 |
O-H |
-Primary
-Good Nucleophile
-Weak Base |
Sn2 |
-Secondary
-Good Nucleophile
-Weak Base |
Sn2 |
-Tertiary
-Good nucleophile
-Weak Base |
-Sn1 Predominates
-Can get E1 with heat
|
-Primary
-Strong, sterically hindered base |
-E2 at high temperatures |
-Secondary
-Strong sterically hindered base |
E2 |
-Tertiary
-Strong sterically hindered |
-E2 |
-Primary
-Good nucleophile
-Strong base |
Sn2 |
-Secondary
-Good nucleophile strong base |
-Sn2
-Add heat for E2 |
-Tertiary
-Good nucleophile
-Strong Base |
E2 |
-Primary
-Poor Nucleophile |
-Sn2 (except F-) |
-Secondary
-Poor nucleophile |
Sn2 |
-Tertiary
-Poor nucleophile |
Sn1- low temp
E1- high temp |
10-30ppm |
sp3 carbon |
50-70 ppm |
sp3 carbon attached to an EN atom |
75-90 ppm |
sp carbon |
100-150 ppm |
sp2 carbon |
160-180 ppm |
carbonyl of ester, amidde, or carboxylic acid |
190-200 ppm |
carbonyl of aldehyde or ketone |
100-160 |
benzene |