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General procedure A mixture of 4-hydroxycoumarin (1 mmol), aromatic aldehyde (1 mmol), methyl carbamate (1.5 mmol) and p-TSA (0.1 mmol) was suspended in water (10 mL) and stirred at 80 °C for 3 h. The reaction was monitored by TLC. After completion, the reaction mixture was allowed to cool to room temperature. The solid was collected by filtration and washed with water (15 mL) to give a pure product.

General procedure A mixture of 4-hydroxycoumarin (1 mmol), aromatic aldehyde (1 mmol), methyl carbamate (1.5 mmol) and p-TSA (0.1 mmol) was suspended in water (10 mL) and stirred at 80 °C for 3 h. The reaction was monitored by TLC. After completion, the reaction mixture was allowed to cool to room temperature. The solid was collected by filtration and washed with water (15 mL) to give a pure product.

Chemistry
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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Based on the general procedure given and reaction scheme, which is the limiting reagent and what is the equivalence?

1 OH + Ar 2 H H₂N 3 p-TSA OMe H₂O, 80 °C, 3h O Ar H
Transcribed Image Text:1 OH + Ar 2 H H₂N 3 p-TSA OMe H₂O, 80 °C, 3h O Ar H
General procedure A mixture of 4-hydroxycoumarin (1 mmol), aromatic aldehyde (1 mmol), methyl carbamate (1.5 mmol) and p-TSA (0.1 mmol) was suspended in water (10 mL) and stirred at 80 °C for 3 h. The reaction was monitored by TLC. After completion, the reaction mixture was allowed to cool to room temperature. The solid was collected by filtration and washed with water (15 mL) to give a pure product.
Transcribed Image Text:General procedure A mixture of 4-hydroxycoumarin (1 mmol), aromatic aldehyde (1 mmol), methyl carbamate (1.5 mmol) and p-TSA (0.1 mmol) was suspended in water (10 mL) and stirred at 80 °C for 3 h. The reaction was monitored by TLC. After completion, the reaction mixture was allowed to cool to room temperature. The solid was collected by filtration and washed with water (15 mL) to give a pure product.
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