TY - BOOK TI - Advances in heterocyclic chemistry U1 - 547.59 PY - 2005/// CY - Amsterdam PB - Academic Press N1 - Aromatic biheterocycles: syntheses, structures, and properties I Introduction II Five-membered rings: one heteroatom III Five-membered rings: two heteroatoms IV Five-membered rings: three or more heteroatoms V Six-membered rings: one nitrogen VI Six-membered rings: two nitrogens VII Six-membered rings: three or more nitrogens References 1,2,4-Triazoline-3,5-Diones I Introduction II Experimental structural methods III Synthesis and stability IV Reactions References Enaminones in heterocyclic synthesis I Introduction II Preparation of enaminones III Three-membered rings: azirines IV Four-membered rings: azetidines V Five-membered rings VI Six-membered rings VII Seven-membered rings VIII Eight-membered rings IX Conclusion References Synthesis of quaternary benzo[c]phenanthridine alkaloids and their analogues I Introduction II Synthesis of quaternary benzo[c]phenanathridines References Acyclonucleosides: part 1. seco-nucleosides I Introduction II Seco-nucleosides from one bond disconnection References ER -