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...
Related questions
Question
100%
Provide mechanism with curved arrows for
Part C: Synthesis of tetraphenylcyclopentadienone
Transcribed Image Text:Experiment 9C: Aldol Condensation (Data Sheet)
Running the reaction
0.44 g of dibenzyl ketone and 0.43 g of benzil were dissolved in 3 mL of absolute ethanol
in a 10 mL round-bottom flask
After adding a spin bar and an air condenser, the mixture was heated to a gentle reflux
0.50 mL of ethanolic potassium hydroxide was added dropwise
The color changed immediately from bright yellow to dark brown
During the 10 min of reflux, a very dark precipitate formed
Product isolation
The mixture was allowed to cool down to room temperature before being placed in an ice-
bath
The solids were isolated by vacuum filtration using a Hirsch funnel
The solids were washed with 1 mL of ice-cold 95 % ethanol being air was sucked through
the crystals for 10 minutes (=crude)
The crude was recrystallized from 15 mL of 95 % ethanol: toluene (1:1)
The hot, saturated solution was allowed to cool down slowly using a hot water bath
After 30 minutes, the mixture cooled to room temperature and was placed in an ice-bath
The crystals were isolated by vacuum filtration using a Hirsch funnel
The crystals were air-dried before characterization
TLC data: mobile phase: hexane: ethyl acetate (3:1), stationary phase: SiO2, dibenzyl
ketone: 11 mm, benzil: 35 mm, product: 71 mm (only one spot in the lane), solvent front:
88 mm
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Recommended textbooks for you
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY