electrophilic

electrophilic - Experiment 9A INTRODUCTION Electrophilic...

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Experiment 9A Electrophilic Aromatic Substitution Michelle Hamilton INTRODUCTION One of the most common and useful electrophilic aromatic substitution reactions is nitration, which introduces the nitro group (NO ) on to the aromatic ring HNO + 2H SO → NO ₂⁺ + H O + 2HSO ₄⁻ In this experiment the substituted benzene ring of acetanilide is nitrated and the category of directing group the NH-CO-CH substituent falls under is determined. Acetanilide+ HNO + H SO → nitroacetanilide + HCl + H O (heat) → nitroaniline TABLE OF REAGENTS acetanilide C H NH(COC H ) 135.17g/mol 1.219g/cm 114.3°C 304°C Concentrated H SO H SO 98.08g/mol 1.84g/cm 10°C 337°C Concentrated HNO HNO 63.01g/mol 1.5129gcm ⁻ᶾ -42°C 83°C o-nitroaniline C H N O 138.14g/mol 1.437g/mol 73-76°C m-nitroaniline C H N O 138.14g/mol 1.437g/mol 112-114°C 306°C p-nitroaniline C H N
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This note was uploaded on 04/14/2011 for the course CHEM 2511 taught by Professor Lewis during the Spring '11 term at Paine.

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electrophilic - Experiment 9A INTRODUCTION Electrophilic...

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