Term
| Calculating degrees of un-saturation |
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Definition
Compare fully saturated molecule to current with the following formula
#H+(1)#Halogens-(1)#N or S and (0) for Oxy |
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Term
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Definition
- all terminal alkenes i.e. those with a C=CH2 unit do not exist as cis- and trans- isomers.
- all 1,1-symmetrically disubstituted alkenes i.e. those with a C=CR2 unit do not exist as cis- and trans- isomers.
- alkenes with the R-CH=CH-R unit can exist as cis- and trans- isomers.
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Term
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Definition
Can Exist if R1 is not = to R2
and
R3 is not = to R4 |
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Term
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Definition
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Term
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Definition
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Term
| Cahn-Ingold-Prelog priority rules |
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Definition
Rule 1) Rank the first atom according to atomic # w/ prioity based on higher number.
Rule 2) Continue to move away from the first until a difference is found.
Rule 3) Multiple bonds are counted as two or three bonds to single atoms |
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Term
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Definition
| The prioroity groups are on the same side. |
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Term
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Definition
| Priority groups on opposite sides |
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Term
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Definition
| H will attach to the carbon with the fewest alkyl substituents and the X attaches to the carbon with the most alkyl sudstituents |
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Term
| Carbocation Stability-Rank Highest to lowest! |
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Definition
1) Tertiary
2) Secondary
3) Primary
4) Methyl |
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Term
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Definition
| The intermediate most closely resembles either the reactants or products depending which is ever is highest energy |
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Term
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Definition
| The preferred product is the more highly substituted product therefore the more stable |
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Term
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Definition
| anti-Zaitsev's Rule is the dominate or major product |
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Term
| Two most common elimination reactions to make a Alkene? |
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Definition
1) dehydrohalogenation
2) dehydration |
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Term
| Dehydrohalogenation of a Alkyl |
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Definition
Removal of a halogen and hydrogen with a strong base from a alkyl halide.
KOH + CH3CH2OH (ethanol) |
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Term
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Definition
Removal of a water molecule of an alkyl alcohol with a strong acid.
H2SO4, H2O, THF |
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Term
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Definition
Yeilds 1,2-dihalides
Only Br or Cl used |
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Term
| Halogenation yields Cis or Trans? |
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Definition
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Term
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Definition
Add HO-Cl or HO-Br to the Alkene
reacts like halogenation and forms trans only
NBS and (DMSO) and H2O |
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Term
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Definition
The addition of H2O to a alkene (hydration)
Hg(OAc)2 + H2O + NaBH4 |
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Term
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Definition
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Term
| Oxymercuration follows Markovnikov's Rule or not? |
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Definition
| Follows Markonikov's Rule |
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Term
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Definition
| The addition of H2O with BH3 in a THF solvent. |
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Term
| Hydroboration follows Markovnikov's Rule or not? |
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Definition
| non-Markovnikov addition because of steric crowding. |
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Term
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Definition
| Adds H to alkenes with the use of metals like Pd or Pt |
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Term
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Definition
| Forming C-H or breaking C-O, C-N, C-X |
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Term
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Definition
The loss of electron density by carbon
Forming C-O, C-N, C-X or breaking C-H |
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Term
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Definition
The adding of three membered ring containing Oxygen
Treatment with a Acid creates a 1,2-diol |
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