How could the yield of diacetylated product be increased?
(this reaction associated with Acetylation of ferrocene in present with acetic anhydride and phosphoric acid, diacetylaeted is minor product in the reaction)
How could the yield of diacetylated product be increased? (this reaction associated with Acetylation of ferrocene in present with acetic anhydride and phosphoric acid, diacetylaeted is minor product i...
1. For the acetylation of ferrocene, ferrocene is mixed with acetic anhydride and 85% phosphoric acid and heated for 20 mins. Why is phosphoric acid used rather than a stronger acid such as sulfuric acid? 2. For the oxidation of ferrocene, NH4[PF6] is added to the reaction mixture of ferrocene, acetone, distilled water, and anhydrous FeCl3. What is the purpose of adding NH4[PF6]?
Question 7 What is the nucleophile in the following reaction Ferrocene + acetic anhydride + Phosphoric acid Acetyl ferrocene + acetic acid Ferrocene A B. Acyllium ion oc. Fe2+ D.H3PO4 Question 8 is specifically important because it has the highest melting point and prevents lipstick from melting. A) candelilla wax B) Carnauba wax C) beeswax D) Natural Waxes А B D Question 9 Which reaction is Fischer Esterification A) CH3COCI + CH3CH2OH → CH3COOCH2CH3 + HCI B)(CH3CO)20 + CH3CH2OH →...
Questions: vide the mechanism of the synthesis of (1.) acetylferrocene, .) 1-1'diacetylferrocene from; Acetic Anhydride, Ferrocene, and ! inydride, Ferrocene, and Phosphoric Acid. Determine the % yield of 1-acetylferrocene if you st excess acetic anhydride. Acetylferrocene is the only product in this case U OT I-acetylferrocene if you started with 300 mg. of Ferrocene and Uraw structures of all starting reagents and all potential products of this reaction,
The following questions refers to the acetylation reaction of ferrocene shown below. 1a) What is the mechanism of the acetylation reaction of ferrocene? 1b) Compare the behaviour of the cyclopentadienyl group in ferrocene with that of benzene. 1c) How could the yield of diacetylated product be increased? COCH, COCH (CH,CO), H2PO4/heat H COC
Salicylic acid and acetic anhydride are synthesized with phosphoric acid to catalyze the reaction to make acetylsalicylic acid (aspirin). How will you know if you have successfully synthesized acetylsalicylic acid? What compound will you have if you did NOT successfully synthesize acetylsalicylic acid, and how can you confirm it?
Using your textbook as a source, find another acetylation agent besides acetic anhydride that could be used in this reaction.
Write the detailed balanced equation for synthesis of acetylferrocene from ferrocene and acetic anhydride. What is the function of the phosphoric acid in the reaction? Chemically, what role does thiamine plays in the catalysis of benzoin condensation? Name another catalyst that can also perform this reaction. Which catalyst for benzoin condensation is better? Why (3reasons)
Draw the acid-base reaction showing protonation of acetic anhydride by phosphoric acid (a strong acid). Pay attention to which atom is most basic.
3. 0.69g of salicylic acid was reacted with 0.6g acetic anhydride in the presence of concentrated phosphoric acid to yield 0.80g of acetyl salicylic acid (see below). Determine the limiting reagent and percent yield. C-CH OH COOH CH, COOH CHC Salicylic acid MW 138.12. mp 159C Acetic anhydride Acetylsalicylic acid M W 102.09. bp 140CMW 180.15. mp 128-1370 4. How do you account for the smell of vinegar when an old bottle of aspirin opened?
Could you explain the mechanism of Friedel-Crafts acetylation of ferrocene acitic acid in words? I am familiar with the mechanism but i am unaware of how to interpret it.