Explain synthesis of dibenzalacetone from bezaldehyde

Reference no: EM13133146

Synthesis of Dibenzalacetone from Bezaldehyde and Acetone

Reacting Benzaldehyde with acetone to yield Dibenzalacetone.

Increased the amount of benzaldehyde used from 2 equivalents to 4 equivalents. NaOH catalyst solution and benzaldehyde is stirred, BEFORE adding the acetone. Added acetone to solution. This mixture is stirred for 30 min and a yellow precipitate is collected (dibenzalacetone product). Washed the product with water, and tested for a neutral solution. Recrystallization was performed to purify the product using warm 95% ethanol.

The NaOH catalyst is prepared dissolving .4g sodium hydroxide in 4.0ml water. To this solution 3.0ml of 95% ethanol was added.

1. Why would the procedure need to be adjusted to add 4 equivalents of benzaldehyde in the reaction instead of 2 equivalents?

2. Why was acetone added to the reaction mixture only after we briefly mixed the catalyst and the behzaldehyde?

3. Why doesn't the dibenzalacetone product react (via the aldol condensation pathway) with the excess benzaldehyde in the reaction mixture?

Reference no: EM13133146

Questions Cloud

Derivative of a vector function : Assume that the i component of the derivative of a vector function r(t) is 0 for all t in the domain of the function. What does this imply about the graph of r?

Calculate the gross profit margin : Locate the income statement of a company in each of the following industries: pharmaceutical, technology, retailer-groceries, and automobile manufacturer.

Differences-similarities of journalizing and posting : Explain the differences/similarities of journalizing and posting?

How much heat would be released : If a bottle of nail polish remover contains 150g of acetone, how much heat would be released by its complete combustion?

Explain synthesis of dibenzalacetone from bezaldehyde : Synthesis of Dibenzalacetone from Bezaldehyde and Acetone, Reacting Benzaldehyde with acetone to yield Dibenzalacetone.

What score on act is equivalent to sat score : Jose scores 842 on the SAT. Assuming that both tests measure the same thing, what score on the ACT is equivalent to Jose's SAT score?

Faith ringgold tar beach painting : Faith Ringgold "Tar Beach" painting? Is the work abstract, representational or non-representational? and Whats the media?

Holding sales constant : By how much must the assets be reduced to bring the TATO to the industry average, holding sales constant?

Binormal vectors to curve and normal plane : If C is the curve given parametrically by R(t)=cost(i)+sint(j)+2t(k) find the normal N and the binormal B for this curve @ t=0

User Account

All Pages