What happens when anthracene react with maleic anhydride?
The reaction involves three π bonds, two from the diene and one from the dienophile in a concerted reaction to form a six-membered ring. Anthracene acts as the diene and maleic anhydride functions as the dienophile.
When using maleic anhydride in a Diels-Alder reaction Why is it important that the glassware and reagents are dry?
1, Expt. 13. Since both maleic anhydride and the product of the Diels-Alder reaction can be hydrolyzed by water, it is important to use dry glassware and to exclude moisture during the reaction and the work- up. The melting point of the product will reveal the identity of the conjugated diene present in the oil.
What is the name of c18h12o3?
Endo-9,10-(alpha,beta-succinic anhydride)anthracene
| PubChem CID | 97290718 |
|---|---|
| Molecular Formula | C18H12O3 |
| Synonyms | Endo-9,10-(.alpha.,.beta.-succinic anhydride)anthracene ZINC95670830 9,10-Ethanoanthracene-11,12-dicarboxylic anhydride (8CI), 9,10-dihydro- |
| Molecular Weight | 276.3 |
| Dates | Modify 2021-12-05 Create 2015-12-11 |
What is the product of furan and maleic anhydride?
16 Furan and maleic anhydride can be used to produce phthalic anhydride (4) in a two-step process: Diels–Alder cyclo- addition to produce 3 followed by dehydration. A related product that can be prepared following this approach is the synthesis of p-xylene from dimethylfuran and ethylene.
Why does anthracene undergo Diels-Alder reaction?
Anthracene undergoes a Diels-Alder reaction with maleic anhydride to give a cycloadduct with the formula C18H12O3. The Diels-Alder reaction is the conjugate addition of an alkene to a diene. The alkene that adds to the diene is called dienophile.
Why xylene is added in Diels-Alder reaction?
General Diels-Alder Reaction: A conjugated “diene” reacts with a “dienophile” to produce a cyclohexene ring. Xylene (dimethylbenzene) is used as a high-boiling solvent so that the reaction will work fast enough to complete conveniently.
Why is anthracene a good diene?
Anthracene, however, is an unusually unreactive diene. This is due to both steric effects, but more importantly because the “diene” is really part of an aromatic ring system and is thus stabilized. This stabilization in the reactant reduces the reactivity (stability/reactivity principle).
What is the formula of anthracene?
C14H10
Anthracene/Formula
Anthracene is a solid polycyclic aromatic hydrocarbon (PAH) of formula C14H10, consisting of three fused benzene rings. It is a component of coal tar.
What is the molar mass of anthracene?
178.23 g/mol
Anthracene/Molar mass
What is the density of furan?
936 kg/m³
Furan/Density
What happen when furan is treated with maleic anhydride?
It is a concerted cyclization reaction which generates an adduct of the starting diene (furan) and dienophile (maleic anhydride) that contains two new C−C bonds. The decomposition of this compound at its melting point of approximately 114∘C simply gives you the original reactants back in a retro Diels-Alder.
Does anthracene undergo Diels-Alder reaction?
What is the CAS number for anthracene maleic anhydride Diels-Alder adduct?
Anthracene-maleic anhydride diels-alder adduct. CAS Number. 5443-16-3. Molecular Weight. 276.28600. Density. 1.375g/cm3.
How do you prepare Diels Alder reaction for anthracene?
The Diels-Alder Reaction of Anthracene with Maleic Anhydride After 30 minutes, let the reaction flask warm to room temperature. Wait at least 15 minutes for the flask to warm to room temperature. Then, place the flask in the second ice water bath for 10 minutes. You should observe crystallization at this point.
What is the total number of atoms in the Diels-Alder adduct molecule?
The Anthracene-maleic anhydride diels-alder adduct molecule consists of 12 Hydrogen atom (s), 18 Carbon atom (s) and 3 Oxygen atom (s) – a total of 33 atom (s).
What is the function of anthracene and maleic anhydride in this reaction?
Anthracene acts as the diene and maleic anhydride functions as the dienophile. Xylene (dimethylbenzene) is used as a high boiling temperature solvent so that the reaction will proceed quickly . Anthracene Maleic anhydride 9,10-dihydroanthracene- -9,10-α,β-succinic anhydride