- Reactions of α-Ketohydrozidoyl Halides with Some Heterocyclic Amines. Facile Synthesis of Arylazo Derivatives of Fused Heterocycles with a Bridgehead Nitrogen Atom
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Arylazo derivatives of imidazothiazoles, imidazopyrazoles, imidazo-s-triazoles, imidazopyrimidines, and imidazopyridines were obtained in good yields from α-keto hydrazidoyl halides and 2-aminothiazole, 5-aminopyrazole, 5-aminotriazole, 2-aminopyrimidine, and 2-aminopyridine, respectively (cf.Tables I and II).The structures of the products were assigned and confirmed on the basis of their elemental analyses, spectra, and alternate synthesis wherever possible.
- Abdelhamid, Abdou O.,Hassaneen, Hamdi M.,Shawali, Ahmad S.,Parkanyi, Cyril
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p. 639 - 644
(2007/10/02)
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- THE REACTIONS OF NITRILE IMINES WITH AMINO- AND OXO- SUBSTITUTED AZOLES
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The behavior of several amino and hydroxy azoles toward nitrile imines and hydrazonyl halides is reported.
- Elfahham, Hassan A.,Sadek, Kamal U.,Elgemeie, Galal E. H.,Elnagdi, Mohamed H.
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p. 119 - 122
(2007/10/02)
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- Novel Synthesis of Pyrazolo-1,2,4-Triazoles, Imidazopyrazoles, and -Triazolobenzimidazoles. Reaction of Nitrile Imines with Amino- and Oxo-substituted Diazoles
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The behaviour of several amino- and hydroxy-diazoles towards nitrile imines and hydrazonoyl halides is reported.The results indicate that nitrile imines can add to the double bonds in amino- and hydroxy-heterocyclic derivatives.However, the nature of the
- Elfahham, Hassan Attia,Sadek, Kamal Usef,Elgemeie, Galal Eldin Hamza,Elnagdi, Mohamed Hilmy
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p. 2663 - 2666
(2007/10/02)
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