Amines are weak bases. Table 10.2 in the course textbook provides a list of pKb values for several amines. The pK values for three amines and their structures are shown below. Explain why increased substitution on nitrogen results in an increase of the pKb value. H3C-NH2 PK = 3.36 H3C N-H pKb = 3.27 H₂C' H3C N-CH3 PK = 4.19 H₂C

Organic Chemistry
8th Edition
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Chapter23: Amines
Section: Chapter Questions
Problem 23.31P
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Amines are weak bases. Table 10.2 in the course textbook provides a list of pKb values for
several amines. The pK values for three amines and their structures are shown below. Explain
why increased substitution on nitrogen results in an increase of the pKb value.
H3C-NH2
PK = 3.36
H3C
N-H
pKb = 3.27
H₂C'
H3C
N-CH3
PK = 4.19
H₂C
Transcribed Image Text:Amines are weak bases. Table 10.2 in the course textbook provides a list of pKb values for several amines. The pK values for three amines and their structures are shown below. Explain why increased substitution on nitrogen results in an increase of the pKb value. H3C-NH2 PK = 3.36 H3C N-H pKb = 3.27 H₂C' H3C N-CH3 PK = 4.19 H₂C
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