Advertisements
Advertisements
Question
Amongst the given set of reactants, the most appropriate for preparing 2° amine is ______.
Options
\[\ce{2° R - Br + NH3}\]
\[\ce{2° R - Br + NaCN followed by H2 /Pt}\]
\[\ce{1° R - NH2 + RCHO followed by H2/Pt}\]
\[\ce{1° R - Br (2 mol) + potassium phthalimide followed by H3O+/heat}\]
Advertisements
Solution
Amongst the given set of reactants, the most appropriate for preparing 2° amine is \[\ce{1° R - NH2 + RCHO followed by H2/Pt}\].
Explanation:
\[\ce{\underset{1° Amine}{R - NH2} + \underset{Aldehyde}{O = HCR} ->[Reductive][amination] R - N - CHR ->[H2/Pt][Reduction] \underset{2° Amine}{RNH - CH2R}}\]
APPEARS IN
RELATED QUESTIONS
An aromatic compound 'A' of molecular formula C7H7ON undergoes a series of reactions as shown below. Write the structures of A, B, C, D and E in the following reactions :
Give the structures of A, B and C in the following reactions :
Account for the following:
Gabriel phthalimide synthesis is not preferred for preparing aromatic primary amines.
Answer the following
Identify A and B in the following reactions.
\[\ce{C6H5CH2Br->[alco.][KCN]A ->[Na/ethanol]B.}\]
Answer the following
Explain Gabriel phthalimide synthesis.
The following amines is the product of Gabriel phthalimide synthesis.
Identify the major product (B).
____________ can be prepared exclusively by Gabriel phthalimide synthesis.
Which nitrogen containing compound amongst the following would undergo Mendius reduction to furnish primary amine \[\ce{(R - NH2)}\]?
Identify 'A' and 'B' in the following conversions.
\[\ce{CH3 - I ->[Alc. KCN][\Delta] A ->[Na/C2H5OH] B}\]
Identify product B in the following reaction.
\[\ce{Aniline ->[NaNO2][HCl] A ->[KI] B}\]
Nitro compounds are reduced by iron scrap and hydrochloric acid to yield one of the following compounds:
Which of the following reagents would not be a good choice for reducing an aryl nitro compound to an amine?
The best reagent for converting, 2-phenylpropanamide into 1- phenylethanamine is ______.
Reduction of aromatic nitro compounds using \[\ce{Fe}\] and \[\ce{HCl}\] gives ______.
How will you carry out the following conversions?
A primary amine is formed by an amide on treatment with bromine and alkali. The primary amine has
The compound X is which of the following?
\[\ce{CH3CN ->[Na + C2H5OH] x}\]
Methyl amine on reaction with chloroform in the presence of NaOH gives ______.
Assertion: Amimonolysis of alkyl halides involves the reaction between alkyl halides and alcoholic ammonia.
Reason: Ammonolysis of alkyl halides produces secondary amines only.
