Transcription of 3.3 REVIEW OF THE CURVED-ARROW NOTATION
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3.3 REVIEW OF THE CURVED-ARROW NOTATION
94 CHAPTER 3 acids and bases . THE CURVED-ARROW OF THE CURVED-ARROW NOTATIONA. Use of the CURVED-ARROW NOTATION to Represent ReactionsIn this chapter, you ve learned two types of reactions that can be described by the CURVED-ARROW NOTATION :1. the association reactions of Lewis bases with electron-deficient compounds (and theirreverse dissociation reactions); and2. electron-pair displacement reaction you study involving electron pairs can be analyzed as one of these two reactiontypes, or as a combination of them. In other words, all reactions involving electron pairs canbe dissected ultimately into only two fundamental processes! Because both of these funda-mental processes can be described with curved arrows, it follows that any reaction involvingelectron pairs can be described with the CURVED-ARROW NOTATION . Because the vast majority ofreactions in organic chemistry involve the movement of electron pairs, it follows that these re-actions are but variations on a theme; they are extensions of the simple examples shown inEqs.
96 CHAPTER 3 • ACIDS AND BASES. THE CURVED-ARROW NOTATION 3.4 BRØNSTED–LOWRY ACIDS AND BASES A. Definition of Brønsted Acids and Bases Although less general than the Lewis concept, the Brønsted–Lowry acid–base concept pro- vides another way of thinking about acids and bases that is extremely important and useful in
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