Aug 15, 2014 · Tropone, or 2,4,6-cycloheptatrien-1-one, is an aromatic, non-benzenoid hydrocarbon. If you look at the resonance structures in the drawing below you'll see that structure B depicts a molecule with a continuous, planar loop of 7 p-orbitals that contain 6 pi-electrons.

Dec 1, 2014 · You can't apply Huckel's 4n+2 rule except for purely cyclic conjugation. When there are pendant pi bonds like the one in tropone all bets are off on 4n+2. You need to look at the MO structure to see if the total pi electron count, eight in this case, is optimal for the whole molecule, not just the ring. (In tropone it is.)

Jun 16, 2021 · According to me tropolone has intramolecular H-bonding, so extent of H-bonding with water will decrease and thus, will be less soluble. Tropone (Cyclohepta-2,4,6-trien-1-one): Tropolone (2-

Oct 29, 2016 · $\begingroup$ Also called tropone and is aromatic. The energy needed to disrupt the electronic energy involved in aromaticity will be huge, the molecule would probably decompose in trying to do so. $\endgroup$ –

Jul 26, 2022 · This answer discusses this situation in connection with the closely related 2-pyridone. The $4n+2$ rule does not apply at all when there are pendant pi-bonding atoms, but in the case of a carbonyl oxygen atom (with its high electronegativity) we can consider a contributing structure where the carbonyl pi bond is polarized towards oxygen: $\ce{\overset{+}{C} …

May 19, 2015 · Question: Identify A and B. My attempt The first step will be the attack of $\ce{PhMgX}$ on carbonyl carbon, that is, 1,2 position followed by hydrolysis, yielding an alcohol.

Mar 5, 2017 · Resonance structures can be drawn for all aromatic compounds. Tropolone, furan and thiophene are considered to be aromatic compounds because

Jan 28, 2018 · How can the stabilities of the tropylium and cyclopropenyl carbocations be compared? Both are aromatic according to Hückel's rule.

Jan 9, 2018 · Is cyclohepta-1,3,5-triene aromatic? I think it should not be, because even though the π-system possesses six π-electrons, the conjugation is not complete around the ring.

May 22, 2016 · What will be the order of stability? The answer key says that the stability order is: cyclopentadiene > cyclopentadienyl anion > cyclopentadiene cation According the me it should be: