1.The actual yield of Compound (4) is 1.0g. What is the Theoretical Yield and thePercent Yield of Compound (4)?rOCH CH3OCH,CH3EsteraseOROHethyl 3-hydroxybenzoate (2)ethyl 3-acetoxybenzoate (3)3-acetoxybenzoic acid (4) ÓH(1)Ac20 / H3PO4 / 75°CČH3(4)Scheme 2:Acylation of (1)To a stirred solution of hydroxybenzoic acid 1 (1.0 g, 7.2 mmol) and acetic anhydride (2.5 mL,26.4 mmol, 3.7 equivalents) was added 3 drops of concentrated phosphoric acid. Thesolution was stirred and warmed to 75°C on a water bath until TLC (1:2 EtOAc:Heptane)deemed the reaction complete. Afterwards, the reaction mixture was removed from thewater bath, 15 mL of water was added and the precipitate that formed was vacuum filtered.The resulting solid was dissolved in a conical flask in 3 ml of hot ethanol and then pouredinto 15 ml of water. After cooling the solution in an ice bath, the resulting precipitate wasvacuum filtered and left as such for 15 min to dry the crystals.

Here the reactants are hydroxybenzoic acid and acetic anhydride. The product is 3-acetoxybenzoic…

1.The actual yield of Compound (4) is 1.0g. What is the Theoretical Yield and the Percent Yield of Compound (4)? OCH,CH, он OCH,CH, Esterase OR он ethyl 3-hydroxybenzoate (2) CH3 ethyl 3-acetoxybenzoate (3) 3-acetoxybenzoic acid (4)

1.The actual yield of Compound (4) is 1.0g. What is the Theoretical Yield and the Percent Yield of Compound (4)? OCH,CH, он OCH,CH, Esterase OR он ethyl 3-hydroxybenzoate (2) CH3 ethyl 3-acetoxybenzoate (3) 3-acetoxybenzoic acid (4)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

1.The actual yield of Compound (4) is 1.0g. What is the Theoretical Yield and the
Percent Yield of Compound (4)?
rOCH CH3
OCH,CH3
Esterase
OR
OH
ethyl 3-hydroxybenzoate (2)
ethyl 3-acetoxybenzoate (3)
3-acetoxybenzoic acid (4)

ÓH
(1)
Ac20 / H3PO4 / 75°C
ČH3
(4)
Scheme 2:
Acylation of (1)
To a stirred solution of hydroxybenzoic acid 1 (1.0 g, 7.2 mmol) and acetic anhydride (2.5 mL,
26.4 mmol, 3.7 equivalents) was added 3 drops of concentrated phosphoric acid. The
solution was stirred and warmed to 75°C on a water bath until TLC (1:2 EtOAc:Heptane)
deemed the reaction complete. Afterwards, the reaction mixture was removed from the
water bath, 15 mL of water was added and the precipitate that formed was vacuum filtered.
The resulting solid was dissolved in a conical flask in 3 ml of hot ethanol and then poured
into 15 ml of water. After cooling the solution in an ice bath, the resulting precipitate was
vacuum filtered and left as such for 15 min to dry the crystals.

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