Answered: Amines can be protected by different…

Amines can be protected by different protecting groups as indicated below. Which of the following is stable to an acid or a base in water. А. В. C. D.

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter27: Amines

Section: Chapter Questions

Problem 2E

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Concept explainers

Amines

Amines are organic compounds with a nitrogen atom having a lone pair of electrons on it. They are derived from ammonia (NH3) wherein hydrogen atoms are substituted by an aryl or alkyl group.

Question

Amines can be protected by different protecting groups as indicated below. Which of the following is stable to an
acid or a base in water.
А.
В.
С.
D.

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Which of the ff statements is false? In aqueous solution the order of base strength R3N > R2NH > RNH2 > NH3. Alkyl groups increase the electron density on nitrogen, making the amine more basic. Alkyl groups stabilize the positive charge on the conjugate acid making the ammonium ion less acidic. Solvation through H-bonding with water is more important in the conjugate acid than in the free amine.
based on this video: on Hinsberg Test Tests for Amines - MeitY OLabs (8.5min) https://www.youtube.com/watch?v=j5jgMUWri8U Write the reaction (two-step, in skeletal) of each test amine when tested in the Hinsberg Test.
Account for the following :(i) Primary amines (R-NH2) have higher boiling point than tertiary amines (R3N).(ii) Aniline does not undergo Friedel – Crafts reaction.(iii) (CH3)2NH is more basic than (CH3)3N in an aqueous solution.
Aliphatic amines are more basic than ammonia, whereas aromatic amines are less basic than ammonia. Is that true or false?
Arrange the following amines in order of increasing basicity. For example, an answer of 1234 would indicate that you think 1 is least basic and 4 is most basic
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In the gas phase the base strength of amines increases along theseries:NH3 < CH3NH2 < (CH3)2NH < (CH3)3NDiscuss the effects determining this order
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