Introduction to Comprehensive Heterocyclic Chemistry - II

Other heterocyclics serve as pesticides, insecticides, herbicides, and rodenticides. Other important practical applications include dyestuffs, copolymers, solvents, photographic sensitizers and developers, and antioxidants and vulcanization accelerators in the rubber industry. Many heterocycles are valuable intermediates in synthesis. 

The successful application of heterocyclic compounds in these and many other ways, and their utility in applied chemistry and in more fundamental and theoretical studies, stems from their very complexity this ensures a virtually limitless series of structurally novel compounds with a wide range of physical, chemical, and biological properties, spanning a broad spectrum of reactivity and stability. Another consequence of the varied chemical reactivity of heterocycles, including the possible destruction of the heterocyclic ring, is their increasing use in the synthesis of specifically functionalized non-heterocyclic structures. 

All of the above aspects of heterocyclic chemistry are mirrored in the contents of the present work. The scale, scope, and complexity of the subject, already referred to, with its correspondingly complex 

2 ARRANGEMENT OF THE WORK IN VOLUMES 2.1 Relationship of CHEC-II to CHEC 

published early in 1984, covered the literature through to 1982. In the intervening years, publication in the field has proceeded apace, and the success of CHEC has encouraged us to bring it up to date with a new edition, CHEC-II. With some exceptions discussed below, CHEC-II concentrates on material published in 1982 and later to have reissued all the material from CHEC would have produced an overly long work. 

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