Synthesis of 1-Bromobutane

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  • Topic: Organic chemistry, Nucleophilic substitution, Nucleophilic aromatic substitution
  • Pages : 2 (274 words )
  • Download(s) : 1152
  • Published : March 30, 2011
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Synthesis of 1-bromobutane from 1-Butanol using the SN2 Reaction

The objective of this experiment is designed to study the synthesis of 1-bromobutane from 1 butanol using a SN2 reaction.. The product will then be analyzed using a flamed loop test by use of fire. Reaction Mechanism:

CH3CH2CH2CH2—OH H+ CH3CH2CH2CH2— +OH2 Br- CH3CH2CH2CH2—Br + H2O 1-butanol 1-bromobutane

Reagent Table:
Reagent| MW (g/mol)| Den.(g/ml)| Bp (°C)| Mass/Vol | Mmoles| Equiv| 1-butanol| | | | | | |
NaBr| | | | | | |
Sulfuric Acid| | | | | | |
Compound/Product| | | | | | |
1- bromobutane| | | | | | |
| | | | | | |

SN2 reactions are substitution reactions that involve the exchanging of a group(s) in a molecule. Nucleophiles are electron donors and want to give them away to electron acceptors. If the leaving group is a bad leaving group. In this experiment, I had foam in my flask from the microscale kit that could of caused an error in my desired product. The test tube 3 had sulfuric acid in it would not separate the layers. Due to this problem I had to swish the contents slowly using a pipette. The swishing process didn’t help to separate any layers, just made the product look turbid. Due to this I added a couple drops of water that helped the product to separate its layers.

SN2 reactions are substitution reactions that are performed in organic labs. In this experiment 1-butanol was converted into 1-bromobutane by an SN2 reaction. The ending result of the experiment was to test if the product was correct by using a flame test that colorizes the product. The flame test turned green which in this case was an overall success.
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