What does a refractive index of 1.38 (literature value = 1.40) tell you about the target compunds identity and purity? Essentially what can we infer about our results if our refractive index is 1.38 in regards to the Fischer Ester Synthesis Experiment.
What does a refractive index of 1.38 (literature value = 1.40) tell you about the target compunds identity and purity? Essentially what can we infer about our results if our refractive index is 1.38 in regards to the Fischer Ester Synthesis Experiment.
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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Fischer Ester Synthesis Experiment:
What does a refractive index of 1.38 (literature value = 1.40) tell you about the target compunds identity and purity? Essentially what can we infer about our results if our refractive index is 1.38 in regards to the Fischer Ester Synthesis Experiment.
Transcribed Image Text:Experiment: Fischer Ester Synthesis (FE)
Title: Synthesis of Isopentyl Ethanoate, the Banana Fragrance (concentrated), the Pear Fragrance
(dilute aqueous solution), and Honeybee's Sting Pheromone.
Ref: Miner Laboratories, Organic Syntheses Collected Volume I (1941), p. 285.
Purpose: Emil Fischer synthesis of isopentyl ethanoate from isopentanol and acetic acid.
Reagent table:
Reagent
(source)
3-methylbutanol
(Fisher)
ethanoic acid
(99.7%)
(Fisher)
H₂SO4
(Fisher)
isopentyl
ethanoate
(Fisher)
Pentane
(Fisher)
Mwt
88.2
60.1
98.0
+
Hoi
mp °C
17
130.2 -79
cat H₂SO4
reflux 1 h
bp °C
130
118
136
36
mmol
50
100
0.06
50
equiv
1.0
2.0
0.001
1.0
mass
4.41 g
6.00 g
5.4 mg
6.51 g
H₂O
density
volume
0.81 g/mL 5.4 mL
1.06 g/mL 5.7 mL
1.84 g/mL 0.3 mL
0.87 g/mL 7.5 mL
0.63 g/mL 43 mL
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