lab report: NITRATION OF METHYL BENZOATE (ELECTROPHILIC AROMATIC SUBSTITUITION)

 

nitration of methyl benzoate lab report

Nitration of methyl benzoate. Nitration is the substitution of an NO 2 group for one of the hydrogen atoms on a benzene ring. In this experiment the students nitrate methyl benzoate. The reaction is regioselective and produces predominantly methyl 3-nitrobenzoate. Reaction of methyl benzoate with nitric acid To begin the reaction I added 6mL of 18M sulfuric acid with g methyl benzoate to a 25mL Erlenmeyer flask, submerging the flask into an ice-salt bath to cool to ~0°C. Next, in a small test tube I mixed 2mL of 18M sulfuric acid with 2mL of M nitric acid and left it to cool in a separate ice bath. Jasperse Chem Nitration Lab 1. NITRATION OF METHYL BENZOATE. General Issues with Electrophilic Aromatic Substitution Reactions: Aromatic substitution reactions involve the substitution of one (or more) aromatic hydrogens with electrophiles. Two major synthetic issues are always involved.



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Aim: Electrophilic Aromatic Substitution: Nitration of Methyl Benzoate Theory: An electrophilic aromatic substitution will be performed in this experiment; more specifically, nitration of methyl benzoate.

In electrophilic aromatic substitutions, an electrophile adds to one of the aromatic ring carbons and generates a resonance stabilized carbocation intermediate.

The carbocation eliminates a proton and regenerates the stable aromatic ring. The nitronium ion can be formed from the reaction of sulfuric and nitric acid. Following is the mechanism for the reaction: After the product is isolated, the percent yield will be calculated and a melting point determination will help discern whether the product is the ortho, meta, nitration of methyl benzoate lab report, or para isomer.

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nitration of methyl benzoate lab report

 

Jasperse Chem Nitration Lab 1. NITRATION OF METHYL BENZOATE. General Issues with Electrophilic Aromatic Substitution Reactions: Aromatic substitution reactions involve the substitution of one (or more) aromatic hydrogens with electrophiles. Two major synthetic issues are always involved. Organic chemistry lab report- Nitration of methyl benzoate In this experiment, the nitronium ion (NO2+) will act as the electrophile. The nitronium ion can be formed from the reaction of sulfuric and nitric acid. After the product is isolated, the percent yield will be calculated and a melting point determination will help discern whether 93%(43). Reaction of methyl benzoate with nitric acid To begin the reaction I added 6mL of 18M sulfuric acid with g methyl benzoate to a 25mL Erlenmeyer flask, submerging the flask into an ice-salt bath to cool to ~0°C. Next, in a small test tube I mixed 2mL of 18M sulfuric acid with 2mL of M nitric acid and left it to cool in a separate ice bath.