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jonny [76]
3 years ago
15

When heated, allyl aryl ethers and allyl vinyl ethers undergo a reaction called a Claisen rearrangement, a concerted reorganizat

ion of bonding electrons similar to the Diels-Alder reaction. The reaction proceeds through a six-membered, cyclic transition state.Draw the structure of the expected product when this compound undergoes a Claisen rearrangement.For the purposes of this problem, assume that double bonds in an aromatic ring are localized at the positions indicated in the figure

Chemistry
1 answer:
mario62 [17]3 years ago
8 0

In this case, we assume that the starting compound is phenol which become in phenoxide due to reaction with sodium hydride. Sodium ohenoxide reacts with 3-bromo-1-propene to obtain the allyl aryl ether: allyl phenylether.

The allyl aryl ether undergoes Claisen reanrrangement when is heat between 200 and 250 celsius grades obtaining o-allyl phenol.

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Explanation:

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pH is calculated by taking negative logarithm of hydrogen ion concentration.

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a) pH = 13.00

As pH is more than 7, the solution is basic.

b)  [H_3O^+]=1.0\times 10^{-12}

Putting in the values:

pH=-\log[1.0\times 10^{-12}]

pH=12

As pH is more than 7, the solution is basic.

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pH+pOH=14.0

pH=14.0-5.00=9.00

As pH is more than 7, the solution is basic.

d) [OH^-]=1.0\times 10^{-9}

Putting in the values:

pOH=-\log[1.0\times 10^{-9}]

pOH=9.00

pH+pOH=14.0

pH=14.0-9.00=5.00

As pH is less than 7, the solution is acidic.

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