t #2 Electrophilic Aromatic Substitution: Nitration of Methyl Benzoate In the pr
ID: 985791 • Letter: T
Question
t #2 Electrophilic Aromatic Substitution: Nitration of Methyl Benzoate In the present experiment, you will synthesize methyl nitrobenzoate by an electrophilic aromatic substitution reaction of methyl benzene·The ester group on the aromatic ring is a meta director moderate deactivator for electrophilic aromatic substitution reactions. The electrophile will be nitronium cation. Aromatic nitro groups have two strong infrared absorptions near 1350 and 15 The presence of these two peaks for an aromatic nitro group is critical for supporting the nitrati aromatic ring. Recrystallization will be used to purify your product. Infrared spectroscopy point will be used to characterize the product and CH3 H2SO4 NO2 Methyl benzoate methyl m-nitrobenzoate o M.W. die/mLI M.P. G) B.P.CQ) Refractive Index 136.2 1.088 Substance 1.5160 1.5340 199 -12 -13 79 95 Methyl benzoate Methyl 2-nitrobenzoate 181.2 Methyl 3-nitrobenzoate 181.2 Methyl 4-nitrobenzoate 181.2 Other Substances Nitrating reagent (1:1 Concentrated Nitric acid/Concentrated sulfuric acid) Reagent alcohol SAFETY PRECAUTIONS afety goggles are required for performing this lab exercise. inimize the breathing of any vapors and skin contact of chemical reagents. The Nitrating reagent is very strongly acidic and a very strong oxidizing agent. Ha extreme care. Wash any skin exposed to the nitrating reagent immediately, and paste of sodium bicarbonate. andle hot lab items with proper protection. ispose chemical waste according to your instructor's directions. ash your hands thoroughly when the lab exercise has been completed.Explanation / Answer
Solution :-
A melting point is the temperature when the solid state of the substance is converted to the liquid state at the constant temperature.
For the methyl nitrobenzoate there are 3 possible structures so it have 3 different melting points
In the reaction the methyl-m-nitrobenzoate is shown as the product of the reaction so the melting point of the product should be around 79 oC
If we get the product melting point 79 C then it conforms that the product is methyl-m-nitrobenzoate
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.