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Look at their functional groups u noob...learn chemistry..i have mr ropartz as my teacher...

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How cyclohexene mignt be formed as a byproduct in the synthesis of cyclohexanone?

One of the common ways to synthesize ketones is by oxidizing secondary alcohols. Cyclohexanone can be easily prepared from cyclohexanol (or hydroxycyclohexane - same thing) by allowing cyclohexanol to react with potassium dichromate (K2Cr2O7) in the presence of acid. However, some of the cyclohexanol will undergo an elimination reaction because of the acid present and form cyclohexene. Your question is a good example of why it is often important to consider how the reactants should be mixed to get the best results. You would not want to add all of the cyclohexanol to the dichromate solution since performing the reaction that way would maximize the percentage of cyclohexene formed. To limit the extent of the competing elimination reaction, one would want to: 1) Look up the oxidation of secondary alcohols to ketones using potassium dichromate in the literature in order to a. determine the amount of acid needed, and don't use more acid than is necessary, and b. try to find the optimum temp. at which to carry out the reaction. The lower the acid concentration, the less cyclohexene that will be formed. 2) Slowly add the alcohol to a rapidly stirring mixture of an aqueous solution of acidified potassium dichromate. 3) An aqueous solution of acidified potassium dichromate will get warm when it is prepared. It would be best to allow it to cool back to room temp. before beginning the reaction. Once the ketone is formed, it will not react further with acidic dichromate because ketones are difficult to oxidize and dichromate is not a strong enough oxidizer.


What short chemical test could you make on the product to indicate whether cyclohexene is present or absent?

One simple test to determine the presence of cyclohexene would be to perform a bromine water test. Add a few drops of bromine water to the product; if cyclohexene is present, the red-brown color of the bromine water will disappear due to addition reaction with the cyclohexene. If the color remains, it indicates that cyclohexene is absent.


Does tollens reagent react with cyclohexanone?

Yes, Tollens' reagent can react with cyclohexanone. Tollens' reagent is commonly used to test for the presence of aldehydes, including cyclohexanone, by forming a silver mirror when the aldehyde is present.


Condensed structural formula for cyclohexene?

I'm guessing it would be something close to CH(CH2)5OH HEX...common... hex means 6 so there is 6 carbons in a row C-C-C-C-C-C Its ending is OL making it an alcohol which needs a OH on the end C-C-C-C-C-C-OH cyclo means its all connected. I cant do it on the computer but assume that the begining carbon and the ending carbon for a hexagon with a OH coming off the last Carbon. attach 2 hydrogens to the carbons except for the carbon with an OH. Just attach one on that one. Then your set!


Is cyclohexanone soluble in water?

Cyclohexanone is slightly soluble in water, with a solubility of around 6.6 g/L at room temperature. This solubility is due to the polar carbonyl group present in cyclohexanone that can interact with water molecules through hydrogen bonding.

Related Questions

How cyclohexene mignt be formed as a byproduct in the synthesis of cyclohexanone?

One of the common ways to synthesize ketones is by oxidizing secondary alcohols. Cyclohexanone can be easily prepared from cyclohexanol (or hydroxycyclohexane - same thing) by allowing cyclohexanol to react with potassium dichromate (K2Cr2O7) in the presence of acid. However, some of the cyclohexanol will undergo an elimination reaction because of the acid present and form cyclohexene. Your question is a good example of why it is often important to consider how the reactants should be mixed to get the best results. You would not want to add all of the cyclohexanol to the dichromate solution since performing the reaction that way would maximize the percentage of cyclohexene formed. To limit the extent of the competing elimination reaction, one would want to: 1) Look up the oxidation of secondary alcohols to ketones using potassium dichromate in the literature in order to a. determine the amount of acid needed, and don't use more acid than is necessary, and b. try to find the optimum temp. at which to carry out the reaction. The lower the acid concentration, the less cyclohexene that will be formed. 2) Slowly add the alcohol to a rapidly stirring mixture of an aqueous solution of acidified potassium dichromate. 3) An aqueous solution of acidified potassium dichromate will get warm when it is prepared. It would be best to allow it to cool back to room temp. before beginning the reaction. Once the ketone is formed, it will not react further with acidic dichromate because ketones are difficult to oxidize and dichromate is not a strong enough oxidizer.


What short chemical test could you make on the product to indicate whether cyclohexene is present or absent?

One simple test to determine the presence of cyclohexene would be to perform a bromine water test. Add a few drops of bromine water to the product; if cyclohexene is present, the red-brown color of the bromine water will disappear due to addition reaction with the cyclohexene. If the color remains, it indicates that cyclohexene is absent.


How can ir spectroscopy be used to show cyclohaxanone has been converted into cyclohexanol?

In the IR spectrum of cyclohexanone, a carbonyl peak around 1700 cm^-1 (C=O stretch) would be present. After conversion to cyclohexanol, this peak would disappear as the carbonyl functional group is reduced to a hydroxyl group. A new peak would appear around 3200-3600 cm^-1, corresponding to the O-H stretch of the alcohol group in cyclohexanol.


Does tollens reagent react with cyclohexanone?

Yes, Tollens' reagent can react with cyclohexanone. Tollens' reagent is commonly used to test for the presence of aldehydes, including cyclohexanone, by forming a silver mirror when the aldehyde is present.


Condensed structural formula for cyclohexene?

I'm guessing it would be something close to CH(CH2)5OH HEX...common... hex means 6 so there is 6 carbons in a row C-C-C-C-C-C Its ending is OL making it an alcohol which needs a OH on the end C-C-C-C-C-C-OH cyclo means its all connected. I cant do it on the computer but assume that the begining carbon and the ending carbon for a hexagon with a OH coming off the last Carbon. attach 2 hydrogens to the carbons except for the carbon with an OH. Just attach one on that one. Then your set!


What is the limiting reactant in synthesis of cyclohexene?

The limiting reactant in the synthesis of cyclohexene is typically the starting material that is present in the smallest amount compared to the stoichiometric ratios in the reaction. It is the reactant that gets completely consumed first, thereby limiting the amount of product that can be formed.


Is cyclohexanone soluble in water?

Cyclohexanone is slightly soluble in water, with a solubility of around 6.6 g/L at room temperature. This solubility is due to the polar carbonyl group present in cyclohexanone that can interact with water molecules through hydrogen bonding.


Why is it important to to wash the crude cyclohexene with aqueous sodium carbonate?

Washing the crude cyclohexene with aqueous sodium carbonate helps neutralize any acidic impurities present in the crude product. This step can also help remove water-soluble impurities, resulting in a cleaner final product.


What is present after a chemical reaction?

That depends on the chemicals present before the chemical reaction and sometimes the conditions under which the chemical reaction occurred.


What does a chemical formula present?

The chemical formula is representative for the chemical composition of a compound.


Why is it necessary to wash the crude cyclohexene product with aqueous sodium carbonate?

Washing the crude cyclohexene product with aqueous sodium carbonate helps to remove any acidic impurities present in the mixture. This process neutralizes any residual acid that may be present from the reaction, resulting in a purer product. Additionally, washing with aqueous sodium carbonate can help remove water-soluble impurities, improving the overall quality of the final product.


State the name of chemical present in limestone?

The primary chemical present in limestone is calcium carbonate (CaCO3).