Recent Advances in the Synthesis of Hydrogenated Azocine-Containing­ Molecules

This review covers recent advances in synthesis of azocine-containing systems. The most approaches towards azocines are discussed. 1 Introduction 2 Ring-Expansion Reaction 2.1 Ring-Expansion Reaction of Cyclopentane Containing the 1,4-Diketone Moiety with Primary Amines (from 5 to 8) 2.2 Ring-Expansion Reaction of Annulated Tetrahydropyridines under the Action of Activated Alkynes (from 6 to 8) 2.3 Reductive Ring-Expansion Reaction of Cyclic Oximes 2.4 Other Ring-Expansion Reactions 3 Heck Reaction 4 Cycloaddition 5 Ring-Closing Metathesis (RCM) 6 Cyclization 6.1 Metal-Catalyzed Cyclization 6.2 Radical Cyclization 6.3 Friedel–Crafts Cyclization 6.4 Other Examples of Cyclizations 7 Microwave- and Photo-Assisted Reactions 8 Other Methods 8.1 Cascade and Tandem Reactions 8.2 Aldol Condensation 8.3 Thermolysis 8.4 Ring Opening 8.5 Other Methods 9 Conclusion