Cover; Advances in Hetrocyclic Chemistry, Volume 6; Copyright Page; Contents; Contributors; Preface; Contents of Volume 1- 5; Chapter 1. Physicochemical Aspects of the Chemistry of Purines; I. Introduction; ll. Molecular Structure of Purines; III. Nucleophilic and Electrophilic Substitution; Chapter 2. The Reduction of Nitrogen Heterocycles with Complex Metal Hydrides; I. Mechanism; II. Reductions of Pyridines and Pyridinium Ions; III. Complex Metal Hydride Reduction of Isoquinolines and Isoquinolinium Ions; IV. Complex Metal Hydride Reduction of Quinolines and Quinolinium Salts

V. Reduction of Non-aromatic Heterocycles Containing the C = N FunctionVI. Reductions of Other Heterocycles Containing One Nitrogen Atom; VII. Reduction of Heterocycles Containing Two Nitrogen Atoms; VIII. Reductions of Azoles; IX. Reduction of Heterocycles Containing Three Nitrogen Atoms; X. Reduction of Pteridines with Complex Metal Hydrides; XI. Summary; Chapter 3. Heterocyclic Syntheses Involving Nitrilium Salts and Nitriles under Acidic Conditions; I. Introduction; II. Ring Formation Involving a Mononitrile Component; III. Ring Formation Involving Cyclization of an a,?-Dinitrile

IV. Chemical Properties of the Pyrazole NucleusAuthor Index; Subject Index