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An ester is created when an alcohol (an Organic compound with a hydroxyl group (-OH)) reacts with an organic acid (an organic compound with a carboxyl group, which has the formula (-COOH)). Esters are usually quite aromatic and are found naturally in wine and fruits.
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What is the difference between malonic ester synthesis and acetoacetic ester synthesis?
The Malonic Ester Synthesis begins with the dimethyl ester of a malonic acid (a beta-carboxy ester). This reaction is used to make substituted CARBOXYLIC ACIDS.1. You start with malonic ester (a beta-carboxy ester) and alkylate it with an alkyl halide. This step is what attaches the alkyl group from the alkyl halide to the malonic ester at the position beta to both carbonyls.2. You then add water and strong base to hydrolyze the ester groups at the ends into carboxylic acid groups, giving you malonic acid (a beta-diacid). It looks like the product from the first step, only there are carboxylic acids in place of the esters at both ends.3. Upon gentle heating, a CO2 leaves giving the enol. The enol tautomerizes, meaning it introconverts into its isomer, the carboxylic acid. The carboxylic acid contains that R group that we attached during step 1.The Acetoacetic Ester Synthesis has a different starting material, but follows the same Akylation-Hydrolysis-Decarboxylation steps! It is used to make asymmetrical, substituted KETONES.1. You start with acetoacetate (a beta-keto ester) and alkylate it with an alkyl halide. This step is what attaches the alkyl group from the alkyl halide to acetoacetate at the position beta to both carbonyls.2. You then add water and strong base to hydrolyze the ester group into a carboxylic acid, giving you a beta-keto acid. It looks like the product from the first step, only there's a carboxylic acid in place of the ester at the end.3. Upon gentle heating, a CO2 leaves giving the enol. The enol tautomerizes, meaning it introconverts into its isomer, the ketone. The ketone is unsymmetrical due to that R group that we attached during step 1.
When bonded what do fatty acids and glycerol form?
Ester bonds. For example, "A triglyceride (TG, triacylglycerol, TAG, or triacylglyceride) is an ester derived from glycerol and three fatty acids."-wikipedia on triglyceride
What reactions form a combustion reaction?
A hydrocarbon and oxygen
Does cyclohexane and hexane form a solution?
Propane, being a GAS but an aliphatic hydrocarbon is soluble in cyclohexane, which is a liquid and a cycloaliphatic hydrocarbon. .
What is the minimum number of carbons necessary to form a hydrocarbon branched structure?
4
What is the proper order of boiling points from highest to lowest for a hydrocarbon an alcohol a carboxylic acid and an ester?
Carboxylic acid > alcohol > ester > hydrocarbon. Carboxylic acids have the highest boiling points due to hydrogen bonding between molecules. Alcohols have the next highest boiling points due to hydrogen bonding as well. Esters have lower boiling points because they do not form hydrogen bonds as strongly. Hydrocarbons have the lowest boiling points as they have no functional groups to facilitate intermolecular forces.
What small hydrocarbon molecules form polymers?
Monomers are small hydrocarbon molecules that form polymers.
What is the reaction of an ester and a base?
Acid has little or no effect except possible exchange of acid groupd between ester and the introduced acid - transesterification. Base - a salt of the acid part of the ester will form and the alcohol or some substituted form of it - that depends on the base used. There is no simple answer as the acids and bases that could be used are almost limitless.
How does a hydrocarbon react with an acid?
Hydrocarbons typically do not react with acids under normal conditions. However, in the presence of a strong acid or a catalyst, hydrocarbons can undergo reactions such as acid-catalyzed hydration to form alcohol or ester formation.
What is the difference between malonic ester synthesis and acetoacetic ester synthesis?
The Malonic Ester Synthesis begins with the dimethyl ester of a malonic acid (a beta-carboxy ester). This reaction is used to make substituted CARBOXYLIC ACIDS.1. You start with malonic ester (a beta-carboxy ester) and alkylate it with an alkyl halide. This step is what attaches the alkyl group from the alkyl halide to the malonic ester at the position beta to both carbonyls.2. You then add water and strong base to hydrolyze the ester groups at the ends into carboxylic acid groups, giving you malonic acid (a beta-diacid). It looks like the product from the first step, only there are carboxylic acids in place of the esters at both ends.3. Upon gentle heating, a CO2 leaves giving the enol. The enol tautomerizes, meaning it introconverts into its isomer, the carboxylic acid. The carboxylic acid contains that R group that we attached during step 1.The Acetoacetic Ester Synthesis has a different starting material, but follows the same Akylation-Hydrolysis-Decarboxylation steps! It is used to make asymmetrical, substituted KETONES.1. You start with acetoacetate (a beta-keto ester) and alkylate it with an alkyl halide. This step is what attaches the alkyl group from the alkyl halide to acetoacetate at the position beta to both carbonyls.2. You then add water and strong base to hydrolyze the ester group into a carboxylic acid, giving you a beta-keto acid. It looks like the product from the first step, only there's a carboxylic acid in place of the ester at the end.3. Upon gentle heating, a CO2 leaves giving the enol. The enol tautomerizes, meaning it introconverts into its isomer, the ketone. The ketone is unsymmetrical due to that R group that we attached during step 1.
What two general classes of substances must be combined to form ester?
An ester is the combination of an acid and an alcohol.
When bonded what do fatty acids and glycerol form?
Ester bonds. For example, "A triglyceride (TG, triacylglycerol, TAG, or triacylglyceride) is an ester derived from glycerol and three fatty acids."-wikipedia on triglyceride
What reactions form a combustion reaction?
A hydrocarbon and oxygen
What is Creatine Ethyl Ester?
Creatine Ethyl Ester is a newer, slightly more expensive form of the popular supplement creatine. Creatine is most commonly sold in the form of creatine monohydrate. Creatine ethyl ester is, essentially, a modified form of creatine monohydrate that has been "esterified." This means that an ethyl ester compound has been attached to the creatine, which theoretically makes it more efficiently absorbed by the body.
Does cyclohexane and hexane form a solution?
Propane, being a GAS but an aliphatic hydrocarbon is soluble in cyclohexane, which is a liquid and a cycloaliphatic hydrocarbon. .
Can you convert ester from liquid to solid form?
sure at zero Kelvin.
What happens when an ester is reacted with NaOH?
When an ester is reacted with NaOH, it undergoes hydrolysis to form the corresponding carboxylate salt and alcohol. The reaction is typically called saponification and is often used in the production of soap.
