Draw reaction mechanism for week 2 A wittig reaction experiment: Week 1 -》 preparation of phosphonium salt Materials : triphenylphosphine (5.3g),methyl Bromoacetate 3.36g (2.1ml) , ethanol 30ml . The yield obtained was 8.93g .The percentage yield was 106.4% Week 2 -》 Formation of the ylide and wittig reaction Materials :Phosphonium salt (5g), napthyl-2- carboxaldehyde( 2.65g), 20 ml of water and 5 nl of Nahco3. Yield obtained was 0.51g . The percentage yield was 14.2%. Week 3: Solvent free wittig reaction Materials: Benzyltriphenylphosphonium chloride (0.5g ), 4 - Bromoabenzaldehyde (0.24g), Potassium phosphate (tribasi c) 0.275g .The yield obtained was 1.21g. The percentage yield was 35.6%.
Draw reaction mechanism for week 2 A wittig reaction experiment: Week 1 -》 preparation of phosphonium salt Materials : triphenylphosphine (5.3g),methyl Bromoacetate 3.36g (2.1ml) , ethanol 30ml . The yield obtained was 8.93g .The percentage yield was 106.4% Week 2 -》 Formation of the ylide and wittig reaction Materials :Phosphonium salt (5g), napthyl-2- carboxaldehyde( 2.65g), 20 ml of water and 5 nl of Nahco3. Yield obtained was 0.51g . The percentage yield was 14.2%. Week 3: Solvent free wittig reaction Materials: Benzyltriphenylphosphonium chloride (0.5g ), 4 - Bromoabenzaldehyde (0.24g), Potassium phosphate (tribasi c) 0.275g .The yield obtained was 1.21g. The percentage yield was 35.6%.
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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Draw reaction mechanism for week 2
A wittig reaction experiment:
Week 1 -》 preparation of phosphonium salt
Materials : triphenylphosphine (5.3g),methyl Bromoacetate 3.36g (2.1ml) , ethanol 30ml . The yield obtained was 8.93g .The percentage yield was 106.4%
Week 2 -》 Formation of the ylide and wittig reaction
Materials :Phosphonium salt (5g), napthyl-2- carboxaldehyde( 2.65g), 20 ml of water and 5 nl of Nahco3.
Yield obtained was 0.51g . The percentage yield was 14.2%.
Week 3: Solvent free wittig reaction
Materials: Benzyltriphenylphosphonium chloride (0.5g ), 4 - Bromoabenzaldehyde (0.24g), Potassium phosphate (tribasi c) 0.275g .The yield obtained was 1.21g. The percentage yield was 35.6%.
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