Organic Chemistry

Problems 881 Identify A through O: Show how the following compounds could be prepared, using only the indicated starting materi ...

882 CHAPTER 20 More About Oxidation–Reduction Reactions Show how the following compounds could be prepared, using only the indi ...

A mines are compounds in which one or more of the hydrogens of ammonia have been replaced by an alkyl group. Amines are among so ...

884 CHAPTER 21 More About Amines • Heterocyclic Compounds Some amines are heterocyclic compounds(or heterocycles)—cyclic compoun ...

Section 21.2 Amine Inversion 885 (in alphabetical order) that have replaced the hydrogens of ammonia. Systematic names employ “a ...

886 CHAPTER 21 More About Amines • Heterocyclic Compounds The lone pair is required for inversion: Quaternary ammonium ions—ions ...

Section 21.4 Reactions of Amines 887 PROBLEM 3 a. Draw the structure of 3-quinuclidinone. b. What is the approximate of its con ...

888 CHAPTER 21 More About Amines • Heterocyclic Compounds We have seen that primary arylamines react with nitrous acid to form s ...

Section 21.5 Reactions of Quaternary Ammonium Hydroxides 889 b. c. d. 21.5 Reactions of Quaternary Ammonium Hydroxides The leavi ...

890 CHAPTER 21 More About Amines • Heterocyclic Compounds the -carbon bonded to three hydrogens, and the minor alkene product re ...

Section 21.5 Reactions of Quaternary Ammonium Hydroxides 891 Because the Hofmann elimination reaction occurs in an anti-Zaitsev ...

892 CHAPTER 21 More About Amines • Heterocyclic Compounds A USEFUL BAD-TASTING COMPOUND Several practical uses have been found f ...

Section 21.6 Phase Transfer Catalysis 893 The two compounds will be able to react with each other if a catalytic amount of a pha ...

894 CHAPTER 21 More About Amines • Heterocyclic Compounds 21.7 Oxidation of Amines; The Cope Elimination Reaction Amines are eas ...

Section 21.8 Synthesis of Amines 895 The major product of the Cope elimination, like that of the Hofmann elimination, is the one ...

896 CHAPTER 21 More About Amines • Heterocyclic Compounds Primary amines also can be prepared in good yields if azide ion is use ...

Section 21.9 Aromatic Five-Membered-Ring Heterocycles 897 A primary amine is obtained from the reduction of a nitroalkane, and a ...

Pyrrole is an extremely weak base because the electrons shown as a lone pair are part of the cloud. Therefore, when pyrrole is p ...

Section 21.9 Aromatic Five-Membered-Ring Heterocycles 899 Substitution occurs preferentially at C-2 because the intermediate obt ...

900 CHAPTER 21 More About Amines • Heterocyclic Compounds The relative reactivities of the five-membered-ring heterocycles are r ...