Heterocyclic compounds 43 ADVANCES IN HETEROCYCLIC CHEMISTRY 21 Heterocyclic chemistry 15 Chemistry 14 HETEROCYCLIC CHEMISTRY 8 Heterocyclic Compounds 7 Alicyclic & heterocyclic compounds-- Organic chemistry 6 Dissertations, Academic (Ph.D) 5 Heterocyclic compounds-Synthesis 5 Thesis (Ph.D)-Chemistry 5 HETEROCYCLIC COMPOUNDS 4 Heterocyclic 4 Ring formation (Chemistry) 4 Heterocycles 3 Organic chemistry 3 Aromatic compounds 2 Carbohydrates 2 Monoheterocyclic 2 Synthesis 2 Transition metal catalysts 2 ADVANCED ORGANIC CHEMISTRY--ORGANIC SYNTHESIS HETEROCYCLES AND BIOMOLECULES 1 ADVANCES IN HETEROCYCLIC CHEMISTRY-- THE TAUTOMERISM OF HETEROCYCLES 1 AROMATIC HETEROCYCLIC CHEMISTRY-- O C P 1 Alicyclic compounds 1 Aliphatic compounds 1 Bioactive compounds 1 CHEMISTRY OF HETEROCYCLES-- STRUCTURE--REACTIONS-- SYNTHESIS AND APPLICATIONS 1 Carbenes (Methylene compounds) 1 Carbocyclic compounds 1 Carbon Compounds 1