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1,3-Oxazine Derivatives

Publisher Summary This chapter discusses the nomenclature, preparation methods, and chemical properties of 1,3-oxazine derivatives. Compounds such as 1,3-oxazine and metoxazine (or mazoxin) consist of a ring of four carbon atoms, one oxygen, and one nitrogen atom; the two heteroatoms are in the 1,3-positions. They can be classified according to the degree of saturation and the position of double bonds. Derivatives of 1,3-oxazine show interesting reactivity and can be used as chemotherapeutic agents. The compounds with one double bond are dihydro-1,3-oxaxines. Dihydro-1,3-oxazine skeletons can be formed in proteins during their transformation to polypeptides. The structures of dihydro-1,3-oxazines are diagrammatically represented in the chapter along with a description of the methods of preparation of iminotetrahydro-1,3-oxazine derivatives, 1,3-4 H -oxazines, oxo and thiono derivatives of tetrahydro-1,3-oxazine, and 3,4-dihydro-1,3-2 H -oxazine. The chemical properties and structure of 1,3-oxazine derivatives are briefly described. The bases of 1,3-oxazines are of varying strength and stability. They can form salts with strong acids. Infrared (IR) absorption spectra provide information regarding the structure of 1,3-oxazine derivatives. They play a major role in theoretical organic chemistry and biologically active compounds.

۱، ۳ - Oxazine Derivatives

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