2 Equation for the reaction of pentene and acidic potassium permanganate

Reaction equations.

ch2-ch=ch-ch2ch3 —kmno4/h+ →ch3cooh + ch3ch2cooh

Acidic potassium permanganate.

Reaction with alkenes can add one oxygen to the carbon at both ends of the double bond of the olefin: c c c o c If there is a hydrogen on a carbon, it can be seen that the resulting oxidation product contains aldehydes, because aldehydes have strong reducing properties, the acidic potassium permanganate can continue to oxidize it to carboxylic acid: cho cooh.

If there are two hydrogens on a carbon, it can be seen that the carbon is oxidized to formaldehyde, which will be further oxidized to carbonic acid, which in turn will be decomposed into carbon dioxide.

and water. Therefore, ethylene is oxidized to carbon dioxide by the intrinsic potassium permanganate.

The acidic potassium permanganate itself is reduced to divalent manganese ions.

2-pentene reacts with acidic potassium permanganate and is thoroughly oxidized to form propionic acid and acetic acid, that is, c=c double fracture to form two carboxyl groups (-cooh).

ch2-ch=ch-ch2ch3 —kmno4/h+ →ch3cooh + ch3ch2cooh

The reaction relationship of the oxidation products of the olefin reaction with the acidic potassium permanganate solution is as follows:

CH2=CHR CO2 + RC00HR1C(R2)=CHR3 R1R2C=O + R3CoOHR1R2C=CHR3 R1R2COOH + R3CoOH (This question is true).

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II. II. IIOlefinsCan be with acidicPotassium permanganateReact.

Specific catalysts, such as Wilkinson's catalysts, allow one double bond of propadiene to be reduced and the other unaffected. Z under the action of potassium permanganate as a catalyst, the double bond in the olefin is broken, and the carbon atoms at both ends carry one electron, and the H-OH bond is broken in water, and the H-,-OH is added to the two carbon atoms with electrons to form alcohol. In the case of diolefins, diols are generated.

This is a bonus reaction.

Potassium permanganateIt has strong oxidizing properties, and is commonly used as an oxidant in the laboratory and industry, in case of ethanol.

i.e. decomposition. It slowly decomposes into manganese dioxide in acidic media.

Potassium salts and oxygen. Light has a catalytic effect on this decomposition, so it is often stored in brown bottles in laboratory sections. As can be seen from the elemental potential diagram and the oxidation state diagram of the free energy, it is extremely oxidizing.

In alkaline solutions, its oxidation is not as strong as in acidic solutions. When used as tung hu yu oxidant, its reduction products are different due to the acidity and alkalinity of the medium.

olefins and potassium permanganate.

Under strong conditions (acidic or heated), the double bond is completely broken, and the c-h on the carbon atom of the double bond is also oxidized and broken to form oxygenated compounds.

According to the above theory, for ch3-ch=c-ch3, it is the middle double bond breakage, so the resulting product is acetone.

and propionic acid. CH3 is at the end of the H2C=CH-CH-CH3 double bond, and the entire left side of the double bond is oxidized to carbonic acid and then decomposed into carbon dioxide.

and water. Ditto on the right, generating two methopropionic acid CH3 so. Whether the product is carboxylic acid ketone or carbon dioxide depends on the position of the double bond; Whether the product is a ketone or a hydrogen atom attached to a carboxylic acid and a carbon atom.

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Chained monoolefins withPotassium permanganateA finger reaction occurs to form valeric acid andCarbon dioxide

If two hydrogens are attached to the double-bonded carbon, the carbon is oxidized to carbon dioxide, and if the double-bonded carbon is connected to one hydrogen, the carbon is oxidized to a carboxyl group.

If there is no hydrogen attached to the double-bonded carbon, the carbon is oxidized to a carbonyl group.

carbon-oxygen double bond). First, it is oxidized to formic acid, and then formic acid (with aldehyde group) is oxidized to carbon dioxide. In the case of a 2-position olefin, acetic acid is generated, which is no longer oxidized by potassium permanganate.

Contains Cong Youyi

The general formula of the chain monoolefin molecule is CNH2N, and C2-C4 is a gas at room temperature, which is a non-polar molecule with silver Zheng and is insoluble or slightly soluble in water. The double bond group is a functional group in the olefin molecule, which is reactive, and can undergo addition reactions such as hydrogenation, halogenation, hydration, halohydrogenation, hypohalogenation, sulfate, epoxidation, polymerization, etc., and can also oxidize the cleavage of double bonds to generate aldehydes, carboxylic acids, etc.

The reaction equation between adiene and potassium permanganate is as follows: 5CH2 = CH2 ethylene + 12kmNO4 potassium permanganate + 18H2SO4 sulfuric acid = 10CO2 carbon dioxide + 12mnSO4 manganese sulfate + 28H2O water + 6K2SO4 potassium sulfate.

Ethylene and potassium permanganate chemical equation.

5ch2=ch2+12mno4- +36h+→10co2+28h20+12mn2-

It can be inferred that the reaction of acidic potassium permanganate with an olefin can add an oxygen to the carbon at both ends of the double bond of the olefin: c c c o c If there is a hydrogen on a carbon, it can be seen that the resulting oxidation product contains aldehydes, and because aldehydes have strong reducing properties, acidic potassium permanganate can continue to oxidize them to carboxylic acids:

Cho cooh, if there is a carbon with two hydrogens on it, it can be seen that the carbon is oxidized to formaldehyde, which will be further oxidized to carbonic acid, which in turn decomposes into carbon dioxide and water.

Therefore, ethylene is oxidized to carbon dioxide by the intrinsic potassium permanganate.

The acidic potassium permanganate itself is reduced to divalent manganese ions.

(CH3)2C=CH2+KMno4—(acidic environment)—CO2+H2O+CH3CoCH3

The carbon-carbon double bond of ethylene can be oxidized by potassium permanganate to carbonyl group to form formaldehyde, and the two -h of formaldehyde can be oxidized to hydroxyl group, so carbonic acid is formed, which is decomposed into carbon dioxide and water. In the same way, isobutylene produces carbon dioxide, water, and acetone.

The chemical formula of oxalic acid is H2C2O4

The chemical formula of acidic potassium permanganate is KMNO4

Produces carbon dioxide and potassium sulfate, manganese sulfate, and water.

The reaction equation is 5H2C2O4

2kmno4

3h2so4

10co2↑

2mnso4

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