Description
1,2,3-Thiadiazoles are a group of heterocycles whose derivatives are important in industry, medicine, and agriculture. This volume provides a complete treatment of this group of heterocycles with an emphasis on syntheses, structural data, properties, reactions, and applications. 1 Synthesis of 1,2,3-thiadiazoles. 1.1 Cyclization of Hydrazones with Thionyl Chloride (Hurd-Mori Synthesis). 1.2 Cycloaddition of Diazoalkanes onto a C=S bond (Pechmann Synthesis). 1.3 Heterocyclization of -diazo Thiocarbonyl Compounds (Wolff Synthesis). 1.4 Transformations of other Sulfur-containing Heterocyclic Compounds. 1.5 Elaboration of Preformed 1,2,3-Thiadiazoles. 1.6 Tables. 1.7 Selected Procedures. References. 2 Structure of 1,2,3-Thiadiazoles. 2.1 Theoretical Methods. 2.2 Experimental Structural Methods. References. 3 Chemical Properties of 1,2,3-Thiadiazoles. 3.1 Reactions due to the Reactivity of Ring Atoms. 3.2 Reactions of Substituents. 3.3 Rearrangements. 3.4 Ring Cleavage of 1,2,3-Thiadiazoles. References. 4 Fused 1,2,3-Thiadiazoles. 4.1 1,2,3-Thiadiazoles Fused with Five-Membered Rings. 4.2 1,2,3-Thiadiazoles Fused with Six-Membered Rings. 4.3 1,2,3-Thiadiazoles Fused with Seven-Membered Rings. 4.4 Bicyclic 1,2,3-Thiadiazoles of Azathiapentalenic Structure. References. 5 Synthesis and Properties of 1,2,3-Selenadiazoles. 5.1 Synthesis of 1,2,3-Selenadiazoles. 5.2 Structural Data of 1,2,3-Selenadiazoles. 5.3 Reactivity of 1,2,3-Selenadiazoles. 5.4 Fused 1,2,3-Selenadiazoles. 5.5 Applications of 1,2,3-Selenadiazoles. References. 6 1,2,3-Thiadiazoles in Medicine and Agriculture. 6.1 Medicine. 6.2 Agriculture. References. Index.
