becausetoluene is an aromatic compound, having 6 pi electron system in resonance, does not behave as 4 pi electron system , don't behave as diene therefore can't react with maleic anhydride.
laracteryze trie DreIS-AATder product. 3. The solvent used in this experiment is toluene. Draw one of...
a) a-phellandrene combined with Maleic Anhydride (diels-alder) followed by NaOH produces one product. Treating with NaOCH3, followed by an acidic workup produces a new product. What is it's structure and why is not a good derivative to use to characterize the Diels-Alder product? b) Toluene in used as a solvent in these Diels-Alder reactions. Draw the Aiels-alder products from the reaction of toluene and maleic anhydride. Why is this product not formed during traditional Diels-Alder reactions?
a. Draw a curved arrow mechanism for the formation of the diels alder product you obtained by combining alpha-phellandrene and maleic anhydride. b. How many possible diels alder products could be formed in this reaction (draw them and state how they are related to each other)? c. Which one is formed as the major product in the reaction and why?
What is the objective of this experiment? The reaction solvent for this experiment is xylene. What property of this solvent makes it a better choice than toluene or benzene? Draw the orbitals involved in the 4+2 electrocyclization for this reaction. Draw the structures of the reactants as best you can. It may be appropriate to abbreviate the structure of anthracene. IR is not provided for this reaction product. Why is IR not useful for monitoring the reaction or characterizing the...
diels alder reaction Draw a structure for the exo product formed by cyclopentadiene and maleic anhydride. Because the exo form is more stable than the endo form, why is the endo product formed almost exclusively in this reaction? In addition to the main product, what are two side reactions that could occur in this experiment? The infrared spectrum of the adduct is given in this experiment. Interpret the principal peaks.
The Diels-Alder reaction you will conduct in this experiment is between cyclopentadiene and maleic anhydride (the anhydride of cis-2-butendioic acid): diene dienophile The glassware is predried and a drying tube is used to prevent the hydrolysis of maleic anhydride to maleic acid (cis-2-butendioic acid): On heating, maleic acid isomerizes to fumaric acid (trans-2-butendioic acid). Show the mixture of products that would be formed if a small amount of moisture was present in the Diels-Alder reaction you have performed.
Question 2&3 Post-Lab: Experiment 9 1. Define the terms diene and dienophile as they apply to the Diels-Alder reaction Based on the amount of cyclopentadiene you used, how many grams is this? 2. The cyclopentadiene collected from the retro-Diels-Alder reaction must be kept cooled and used fairly soon. Why? 3. 159 Experiment 9 Cycloadditions: The Dieis-Alder Reaction Lab Report: Experiment 9 Preparation of the Adduct Molecular Weight Reagent Grams Moles 6l6-105 0.076 0.05l Cyclopentadiene S1 maleic Anhydride Maleic anhydride The...
Critical Thinking Questions 1. Draw the structure for the product from the reaction of 1,3-cyclohexadiene and maleic acid (cis-2-butenedioic acid). 2. What is the product expected from the reaction of 1,3-butadiene and 3-sulfolene? Why is this not a major concern as a by-product? Part B, the dimer dicyclopentadiene is a possible contaminant of cyclopentadi- ene. It is also a diene. Can dicyclopentadiene undergo reaction with cyclopentadi- ene? Can dicyclopentadiene act as a diene and undergo reaction with the anhydride 3....
There are three possible products for the Diels-Alder reaction, each involve the addition of one molecule of maleic anhydride to one molecule of anthracene. Draw each possible product, clearly showing the stereochemistry of the reaction.
Draw the products of these 4 dienes with maleic anhydride. Provide the melting point of the adduct as well. Thank you. CH3 β-myrcene M.P. Diels-Alder product: 33-34 CH3 CH3 M.P. Diels-Alder product: 60-61° α-phellandrene M.P. Diels-Alder allo-ocimene M.P. Diels-Alder product: 83-84° product: 126-127
(3.Draw the structure of the Diels-Alder products that result from the following pairs of starting molecules: a. 1,3-cyclohexadiene and maleic anhydride ОСН3 O Насо