Advances in heterocyclic chemistry/

Amino acids as synthons for heterocyclic compounds
I Introduction
II Three-membered rings
III Four-membered rings
IV Five-membered rings
V Six-membered rings
VI Seven-membered rings
VII Bicyclic 5-5 ring systems
VIII Bicyclic 5-6 and 5-7 ring systems
IX Bicyclic 5-5 and 5-6 ring systems with three heteroatoms
X Quinolines and isoquinolines
XI Benzopyrones
XII Other fused bicyclic 6-6 an d 6-7 rings
XIII Tricyclic and polycyclic ring systems
References

Tropones, Tropolones, and Tropylium salts with fused heterocyclic rings Part 1: synthesis
I Introduction
II Syntheses
References

Iminophosphoranes: versatile tools in heterocyclic synthesis
I Introduction
II Synthesis of Iminophosphoranes
III General properties
IV Biological activity
V Aza-wittig reaction
VI The Aza-wittig reaction: a versatile principle in heterocyclic synthesis
VII Iminophosphoranes as verstile starting materials in the three-component reaction: Iminophosphorane-Heterocumulene-Heteroarene
VIII Conclusion and outlook
References

Recent developments in ring-chain Tautomerism I. Intramolecular reversible addition reactions to the C=O group
I Introduction
II Synthesis
III Properties
IV 19F nuclear magnetic resonance
V Perfluoroalkylation
VI Kinetics of Trifluoromethylation
References

1,3-Oxazinium and 3-Azapyrylium salts
I Introduction
II 5,6-Dihydro-4H-1,3-Oxazinium salts
III 1,3-Oxazinium salts
IV 3-Azapyrylium salts
V 1,3-Oxazinium salts having two Nitrogen atoms
VI Functionalized 1,3-Oxazinium derivatives
VII Spectral properties of 1,3-Oxazinium derivatives
References