The ring opening of 5-methylfuran-2(5H)-one takes place in the presence of methanol. The OCH3 group of methanol attacks the carbonyl carbon of the lactone ring to form the product methyl-4-hydroxypent-2-enoate. When this product is exposed to methanol during the course of reflux, intramolecular reaction takes place when the hydroxy group (nucleophile) attacks the carbonyl carbon to release the -OCH3 group and form the stable lactone ring. It can be explained by the following reactions:
The transesterified product methyl-4-hydroxypent-2-enoate undergoes diels alder reaction with cyclopentadiene.
This can be explained by the following chemical equation:
Forward and Retro Diels-Alder Post-Lab Questions: 5-methylfuran-2 (5 H)-one (see below) is an alcohol/water sensiti...
5-methylfuran-2(5H)-one is an alcohol/water sensitive compound. in the presence if an alcohol, it undergoes a process known as transesterification. draw the structure of transesterified 5-methylfuran-2(5H)-one. PLEASE HELP WITH QUESTION 1&2!!! Forward and Retro Diels-Alder Post-Lab Questions: 1. 5-methylfuran-2(5H)-one (see below) is an alcohol/water sensitive compound. In the presence of an alcohol, it undergoes a process known as transesterification. Draw the structure of transesterified 5- methylfuran-2(5H)-one: CH3OH Transesterification 2. If the reaction vessel were exposed to methanol during the course of...
1. S-methylfuran-2(5H)-one (see below) is an alcohol/water sensitive compound. In the presence ofa alcohol, it undergoes a process known as transesterification. Draw the structure of transesterified methylfuran-2(5H)-one: CH3OH Transesterification
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...
This is from an organic chemistry diels-alder lab using anthracene, maleic anhydride and xylenes. Can anyone tell me the correct answers to all of these? For question 3 I need a method to remove xylene and a method to remove acetone. Thank you! CHM 20L Organic ll Lab Discussion and conclusion Provide responses to each of the following questions." Attach the 'H NMR spectrum for your product to respond to the following (on the spectrum, where appropriate) 1. Use the...