Question 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 obtained was 106.4% Week 2 -》 Formation of the ylide and wittig reaction Materials :Phosphonium salt (5g), napthyl-2- carboxwaldehyde( 2.65g), 20 ml of water and 5 nl of Nahco3. Yield obtained was 0.51g .Calculate the percentage yield 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. Calculate the percentage yield

Question 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 obtained was 106.4% Week 2 -》 Formation of the ylide and wittig reaction Materials :Phosphonium salt (5g), napthyl-2- carboxwaldehyde( 2.65g), 20 ml of water and 5 nl of Nahco3. Yield obtained was 0.51g .Calculate the percentage yield 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. Calculate the percentage yield

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter23: Amines

Section: Chapter Questions

Problem 23.67P

See similar textbooks

Similar questions

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 . Calculate the percentage yield Week 2 -》 Formation of the tlide and wittig reaction Materials :Phosphonium salt (5g), napthyl-2- carboxwaldehyde( 2.65g), 20 ml of water and 5 nl of Nahco3. Yield obtained was 0.51g .Calculate the percentage yield 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. Calculate the percentage yield
Several diamines are building blocks for the synthesis of pharmaceuticals and agro-chemicals. Show how both 1,3-propanediamine and 1,4-butanediamine can be prepared from acrylonitrile.
What is the structural requirement for a substance to react with ammoniacal AgNO3? Why would acetylene react with Tollen's reagent but not cyclohexane or cyclohexene?
Calculate the theoretical yield and percent yield. Reaction between 2.0g Tetraphenylcyclopentadienone and 0.53 Maleic Anhydride with 5.0mL of bromobenzene to make Tetraphenyldihydrophthalic Anhydride. The yield obtained was 1.95g.
Benzene is often produced as a side product during Grignard reactions using phenylmagnesium bromide. How can its formation be explained? Give a balanced equation for its formation.
How harmful Terephthalic acid is paarticularly in human health and environment?
Provide an acceptable name for the compound shown below
1. If 2 g of aniline is allowed to react with 2.5 ml acetic anhydride( density is 1.08g/ml), a)Which one is limiting reagent and which one is excess reagent? b) what will be the theoretical yield of the reaction? c) If 2 g of acetanilide is produced, what will be the percentage yield of the reaction?
What is the major organic product obtained from the reaction of toluene with fuming sulfuric acid?
A compound of molecular formula C5H10O forms a yellow precipitate with 2,4-dinitrophenylhydrazine reagent and a yellow precipitate with reagents for the iodoform test. a) Draw the structural formulae b) Name the two (2) compounds that fit these tests.
Choose exactly 3 answers from the choices 1. Nitrogen-containing functional groups: AmidesThiolsAzo dyesAmines 2. Carbonyl-containing functional groups: AldehydesEthersKetonesCarboxylic acids 3. Structural components/groups present in Ethoxymethane: Methyl groupEthyl groupOxygenEster linkage
15. In organic synthesis, sodium methoxide (NaOCH3) is useful as a strong base and as a nucleophile. Sodium methoxide can easily be prepared by reacting which one of the following with methanol? (Hint: This reaction is seen in the pyrimethamine synthesis.) A) sodium chloride B) sodium sulfate C) sodium hydroxide D) sodium metal E) sodium nitrite 16. The reaction of ferrocene with acetic anhydride to form acetylferrocene and diacetylferrocene is an example of which type of reaction? A) a Grignard reaction B) a Wittig reaction C) a Friedel-Crafts reaction D) a Diels-Alder reaction E) a reductive amination reaction