Organic Chemistry : Reactions by Reactant

Study concepts, example questions & explanations for Organic Chemistry

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Example Questions

Example Question #11 : Help With Alkene Reactions

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What is the major product of the reaction given?

Possible Answers:

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Correct answer:

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Explanation:

Alkenes react with NBS (N-bromosuccinimide) in the presence of light to giving products in the position next to the double called the allylic position. Below is the mechanism for this reaction:



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Example Question #21 : Reactions By Reactant

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What is the major product of the reaction given?

Possible Answers:

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Correct answer:

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Explanation:

Alkenes react with NBS (N-bromosuccinimide) in the presence of light to giving products in the position next to the double called the allylic position. Below is the mechanism for this reaction:

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Example Question #21 : Reactions By Reactant

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What is the product of the chemical reaction given?

Possible Answers:

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Correct answer:

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Explanation:

Hydroxylation of alkene compounds is called a hydration reaction. The reaction occurs in the presence of a strong acid catalyst to protonate the organic compound similar to Markovnikov's addition forming a carbocation as an intermediate. A water molecule nucleophilicly bonds to the carbocation intermediate. A proton is lost from the positively charged oxygen to a chloride ion yielding the alcohol product and regenerating the acid.

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Example Question #21 : Help With Alkene Reactions

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What is the product of the chemical reaction given?

Possible Answers:

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Correct answer:

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Explanation:

Hydroxylation of alkene compounds is called a hydration reaction. The reaction occurs in the presence of a strong acid catalyst to protonate the organic compound similar to Markovnikov's addition forming a carbocation as an intermediate. A water molecule nucleophilicly bonds to the carbocation intermediate. A proton is lost from the positively charged oxygen to a chloride ion yielding the alcohol product and regenerating the acid.

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Example Question #21 : Help With Alkene Reactions

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What is the product of the chemical reaction given?

Possible Answers:

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Correct answer:

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Explanation:

Hydroxylation of alkene compounds is called a hydration reaction. The reaction occurs in the presence of a strong acid catalyst to protonate the organic compound similar to Markovnikov's addition forming a carbocation as an intermediate. A water molecule nucleophilicly bonds to the carbocation intermediate. A proton is lost from the positively charged oxygen to a chloride ion yielding the alcohol product and regenerating the acid.

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Example Question #21 : Help With Alkene Reactions

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What is the product of the chemical reaction given?

Possible Answers:

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Correct answer:

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Explanation:

Hydroxylation of alkene compounds is called a hydration reaction. The reaction occurs in the presence of a strong acid catalyst to protonate the organic compound similar to Markovnikov's addition forming a carbocation as an intermediate. A water molecule nucleophilicly bonds to the carbocation intermediate. A proton is lost from the positively charged oxygen to a chloride ion yielding the alcohol product and regenerating the acid.

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Example Question #551 : Organic Chemistry

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What is the product of the chemical reaction given?

Possible Answers:

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Screen shot 2016 01 24 at 6.26.58 pm

Correct answer:

Screen shot 2016 01 24 at 6.26.58 pm

Explanation:

Hydroxylation of alkene compounds is called a hydration reaction. The reaction occurs in the presence of a strong acid catalyst to protonate the organic compound similar to Markovnikov's addition forming a carbocation as an intermediate. A water molecule nucleophilicly bonds to the carbocation intermediate. A proton is lost from the positively charged oxygen to a chloride ion yielding the alcohol product and regenerating the acid.

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Example Question #21 : Reactions By Reactant

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What is the product of the chemical reaction given?

Possible Answers:

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Correct answer:

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Explanation:

Hydroxylation of alkene compounds is called a hydration reaction. The reaction occurs in the presence of a strong acid catalyst to protonate the organic compound similar to Markovnikov's addition forming a carbocation as an intermediate. A water molecule nucleophilicly bonds to the carbocation intermediate. A proton is lost from the positively charged oxygen to a chloride ion yielding the alcohol product and regenerating the acid.

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Example Question #21 : Help With Alkene Reactions

What is the product of the reaction shown?

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Possible Answers:

Correct answer:

Explanation:

The reaction is a catalytic hydrogenation of an alkene using a palladium (Pd) catalyst. This reaction can be used to add a hydrogen atom to each carbon involved in a pi bond. The resulting molecule will be a an alkane.

Example Question #1 : Help With Alkyne Reactions

Starting with an alkyne, synthesis of a cis alkene is driven upon addition of which of the following reagents?

Possible Answers:

Correct answer:

Explanation:

Reduction of an alkyne with hydrogen and Lindlar's catalyst will result in a cis alkene. While  is a reducing agent, when added to an alkyne, a trans alkene is formed. Potassium permanganate is an oxidizing agent and thus will not reduce the triple bond. The Grignard reagent is used to add organic substituents onto carbonyls. Addition of one equivalent of chlorine in carbon tetrachloride solvent yields a trans alkene; addition of a second equivalent of chlorine yields a tetrachloro alkane.

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