Aidehydes and ketones react with ammonia and primary amines to form imines in slightly acidic condition. A typical reaction mechanism with a primary amine is as followsThe proper pH control is crucial to imine formation otherwise reaction does not proceed at appreciable rate.However, if a secondary amine is reacted, no hydrogen is left on nitrogen on intermediate (I) for the deprotonation in step II. Hence, the reaction proceeds asEnamine is a suitable intermediate route for -alkyiation of a carbonyl compound.Q.Which of the following is expected to give more than one imine when treated with CH3NH2?a)CH3CHOb)c)H2COd)(C6H5)2COCorrect answer is option 'A'. Can you explain this answer?

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Aidehydes and ketones react with ammonia and primary amines to form imines in slightly acidic condition. A typical reaction mechanism with a primary amine is as follows

The proper pH control is crucial to imine formation otherwise reaction does not proceed at appreciable rate.
However, if a secondary amine is reacted, no hydrogen is left on nitrogen on intermediate (I) for the deprotonation in step II. Hence, the reaction proceeds as

Enamine is a suitable intermediate route for α-alkyiation of a carbonyl compound.

Which of the following is expected to give more than one imine when treated with CH₃NH₂?

a)
CH₃CHO
b)
c)
H₂CO
d)
(C₆H₅)₂CO

Correct answer is option 'A'. Can you explain this answer?

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Aidehydes and ketones react with ammonia and primary amines to form imines in slightly acidic condition. A typical reaction mechanism with a primary amine is as followsThe proper pH control is crucial to imine formation otherwise reaction does not proceed at appreciable rate.However, if a secondary amine is reacted, no hydrogen is left on nitrogen on intermediate (I) for the deprotonation in step II. Hence, the reaction proceeds asEnamine is a suitable intermediate route for -alkyiation of a carbonyl compound.Q.What is the product X in the following reaction?

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Comprehension TypeDirection (Q. Nos. 15-17) This section contains a paragraph, describing theory, experiments, data, etc. Three questions related to the paragraph have been given. Each question has only one correct answer among the four given options (

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Read the passage given below and answer the following questions:Reductive alkylation is the term applied to the process of introducing alkyl groups into ammonia or a primary or secondary amine by means of an aldehyde or ketone in the presence of a reducing agent. The present discussion is limited to those reductive alkylations in which the reducing agent is hydrogen and a catalyst or "nascent" hydrogen, usually from a metalacid combination; most of these reductive alkylations have been carried out with hydrogen and a catalyst. The principal variation excluded is that in which the reducing agent is formic acid or one of its derivatives; this modification is known as the Leuckart reaction. The process of reductive alkylation of ammonia consists in the addition of ammonia to a carbonyl compound and reduction of the addition compound or its dehydration product. The reaction usually is carried out in ethanol solution when the reduction is to be effected catalytically:Since the primary amine is formed in the presence of the aldehyde it may react in the same way as ammonia, yielding an additional compound, a Schiff's base (RCH= NCH2R) and finally, a secondary amine. Similarly, the primary amine may react with the imine, forming an addition product which also is reduced to a secondary amine Finally, the secondary amine may react with either the aldehyde or the imine to give products which are reduced to tertiary amines.Similar reactions may occur when the carbonyl compound employed is a ketone.Q. The reaction of ammonia and its derivatives with aldehydes is called

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When aldehydes lacking a-hydrogen is treated with concentrated solution of a strong base, Cannizaro reaction takes place. In this reaction, one molecule of aldehyde is oxidised while other is reduced. The widely accepted mechanism isStep IIQ.In certain experim ental condition, rate is found to be proportional to square of concentration of base (OH-).This indicates that

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An alcohol (R — OH) can be converted into alkyl chloride by the treatm ent with HCI. Reaction involves protonation of alcohol followed by the formation of carbocation intermediate. Carbocation intermediate in the final step undergo nucleophilic attack by Cl-ion as :Q.Which of the following can catalyse the above reaction?

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Aidehydes and ketones react with ammonia and primary amines to form imines in slightly acidic condition. A typical reaction mechanism with a primary amine is as followsThe proper pH control is crucial to imine formation otherwise reaction does not proceed at appreciable rate.However, if a secondary amine is reacted, no hydrogen is left on nitrogen on intermediate (I) for the deprotonation in step II. Hence, the reaction proceeds asEnamine is a suitable intermediate route for α-alkyiation of a carbonyl compound.Q.Which of the following is expected to give more than one imine when treated with CH3NH2?a)CH3CHOb)c)H2COd)(C6H5)2COCorrect answer is option 'A'. Can you explain this answer?

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Aidehydes and ketones react with ammonia and primary amines to form imines in slightly acidic condition. A typical reaction mechanism with a primary amine is as followsThe proper pH control is crucial to imine formation otherwise reaction does not proceed at appreciable rate.However, if a secondary amine is reacted, no hydrogen is left on nitrogen on intermediate (I) for the deprotonation in step II. Hence, the reaction proceeds asEnamine is a suitable intermediate route for α-alkyiation of a carbonyl compound.Q.Which of the following is expected to give more than one imine when treated with CH3NH2?a)CH3CHOb)c)H2COd)(C6H5)2COCorrect answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Aidehydes and ketones react with ammonia and primary amines to form imines in slightly acidic condition. A typical reaction mechanism with a primary amine is as followsThe proper pH control is crucial to imine formation otherwise reaction does not proceed at appreciable rate.However, if a secondary amine is reacted, no hydrogen is left on nitrogen on intermediate (I) for the deprotonation in step II. Hence, the reaction proceeds asEnamine is a suitable intermediate route for α-alkyiation of a carbonyl compound.Q.Which of the following is expected to give more than one imine when treated with CH3NH2?a)CH3CHOb)c)H2COd)(C6H5)2COCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Aidehydes and ketones react with ammonia and primary amines to form imines in slightly acidic condition. A typical reaction mechanism with a primary amine is as followsThe proper pH control is crucial to imine formation otherwise reaction does not proceed at appreciable rate.However, if a secondary amine is reacted, no hydrogen is left on nitrogen on intermediate (I) for the deprotonation in step II. Hence, the reaction proceeds asEnamine is a suitable intermediate route for α-alkyiation of a carbonyl compound.Q.Which of the following is expected to give more than one imine when treated with CH3NH2?a)CH3CHOb)c)H2COd)(C6H5)2COCorrect answer is option 'A'. Can you explain this answer?.

Solutions for Aidehydes and ketones react with ammonia and primary amines to form imines in slightly acidic condition. A typical reaction mechanism with a primary amine is as followsThe proper pH control is crucial to imine formation otherwise reaction does not proceed at appreciable rate.However, if a secondary amine is reacted, no hydrogen is left on nitrogen on intermediate (I) for the deprotonation in step II. Hence, the reaction proceeds asEnamine is a suitable intermediate route for α-alkyiation of a carbonyl compound.Q.Which of the following is expected to give more than one imine when treated with CH3NH2?a)CH3CHOb)c)H2COd)(C6H5)2COCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12. Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.

Here you can find the meaning of Aidehydes and ketones react with ammonia and primary amines to form imines in slightly acidic condition. A typical reaction mechanism with a primary amine is as followsThe proper pH control is crucial to imine formation otherwise reaction does not proceed at appreciable rate.However, if a secondary amine is reacted, no hydrogen is left on nitrogen on intermediate (I) for the deprotonation in step II. Hence, the reaction proceeds asEnamine is a suitable intermediate route for α-alkyiation of a carbonyl compound.Q.Which of the following is expected to give more than one imine when treated with CH3NH2?a)CH3CHOb)c)H2COd)(C6H5)2COCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Aidehydes and ketones react with ammonia and primary amines to form imines in slightly acidic condition. A typical reaction mechanism with a primary amine is as followsThe proper pH control is crucial to imine formation otherwise reaction does not proceed at appreciable rate.However, if a secondary amine is reacted, no hydrogen is left on nitrogen on intermediate (I) for the deprotonation in step II. Hence, the reaction proceeds asEnamine is a suitable intermediate route for α-alkyiation of a carbonyl compound.Q.Which of the following is expected to give more than one imine when treated with CH3NH2?a)CH3CHOb)c)H2COd)(C6H5)2COCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Aidehydes and ketones react with ammonia and primary amines to form imines in slightly acidic condition. A typical reaction mechanism with a primary amine is as followsThe proper pH control is crucial to imine formation otherwise reaction does not proceed at appreciable rate.However, if a secondary amine is reacted, no hydrogen is left on nitrogen on intermediate (I) for the deprotonation in step II. Hence, the reaction proceeds asEnamine is a suitable intermediate route for α-alkyiation of a carbonyl compound.Q.Which of the following is expected to give more than one imine when treated with CH3NH2?a)CH3CHOb)c)H2COd)(C6H5)2COCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Aidehydes and ketones react with ammonia and primary amines to form imines in slightly acidic condition. A typical reaction mechanism with a primary amine is as followsThe proper pH control is crucial to imine formation otherwise reaction does not proceed at appreciable rate.However, if a secondary amine is reacted, no hydrogen is left on nitrogen on intermediate (I) for the deprotonation in step II. Hence, the reaction proceeds asEnamine is a suitable intermediate route for α-alkyiation of a carbonyl compound.Q.Which of the following is expected to give more than one imine when treated with CH3NH2?a)CH3CHOb)c)H2COd)(C6H5)2COCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Aidehydes and ketones react with ammonia and primary amines to form imines in slightly acidic condition. A typical reaction mechanism with a primary amine is as followsThe proper pH control is crucial to imine formation otherwise reaction does not proceed at appreciable rate.However, if a secondary amine is reacted, no hydrogen is left on nitrogen on intermediate (I) for the deprotonation in step II. Hence, the reaction proceeds asEnamine is a suitable intermediate route for α-alkyiation of a carbonyl compound.Q.Which of the following is expected to give more than one imine when treated with CH3NH2?a)CH3CHOb)c)H2COd)(C6H5)2COCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Class 12 tests.

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