why 2-chloropropionic acid is stronger than 3-chloropropionic acid?
1
Expert's answer
2012-11-06T10:00:03-0500
If pK of acid is less, the power of acid will be more.Since the acid is more stable. pK of 2-chloropropionic acid is 2.83 pK of 3-chloropropionic acid is 3.98 So the 2-chloropropionic acid is stronger than 3-chloropropionic acid
The chlorine atom has the positive inductive effect I+. It pulls the
electron density away from the carboxylic group, thus enhancing its
acidity. The effect is larger when the chlorine atom is located closer
to the carboxylic group. Hence the 2-chloropropionic acid will have
the significantly higher acidity compared with the 3-chloropropionic
acid.
pk
15.05.14, 19:02
can you elaborate in terms of +I effect?
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The chlorine atom has the positive inductive effect I+. It pulls the electron density away from the carboxylic group, thus enhancing its acidity. The effect is larger when the chlorine atom is located closer to the carboxylic group. Hence the 2-chloropropionic acid will have the significantly higher acidity compared with the 3-chloropropionic acid.
can you elaborate in terms of +I effect?
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