Results 91 to 100 of about 18,313 (167)

Studies in Purine Chemistry. VIII. A Convenient Synthesis of Hypoxanthines and Adenines1,2

Journal of the American Chemical Society, 1960
Edward C Taylor
exaly   +2 more sources

Synthesis of N-Aryl Uracils and Hypoxanthines and Their Biological Properties

Nucleosides, Nucleotides and Nucleic Acids, 1999
Shigetada Kozai, Tokumi Maruyama
exaly   +2 more sources

The reaction of 5‐aminoimidazole‐4‐carbohydrazides with orthoesters

, 1985
The reaction of 5‐aminoimidazole‐4‐carbohydrazides with orthoesters is shown to yield 1‐amino‐9‐alkyl‐hypoxanthines. Similar reaction of anthranilic acid hydrazide is shown to yield 3‐amino‐4‐quinazolone, and not 1,4‐dihydro‐5H‐1,3,4‐benzotriazepin‐5‐one
P. K. Bridson, R. Davis, L. Renner
semanticscholar   +2 more sources

Mechanism of Hydrogen–Deuterium Exchange in Hypoxanthines

Journal of the Chemical Society, Perkin Transactions 1, 1973
Dov Lichtenberg, Felix Bergmann
exaly   +2 more sources

New Observations on Tautomerism and Ionization Processes in Hypoxanthines and 6-Thiopurines

Israel Journal of Chemistry, 1972
D Lichtenberg, Z Neiman, F Bergmann
exaly   +2 more sources

Proton Transfer From Heterocyclic Compounds. Part IV. Guanine, Guanosine, Hypoxanthines, and Inosine

Journal of the Chemical Society, Perkin Transactions 2, 1974
Conor O'Brien, E Anthony Evans
exaly   +2 more sources

Hydrogen–Deuterium Exchange in Hypoxanthines

Challenge, 1969
F. Bergmann, D. Lichtenberg, Z. Neiman
exaly   +2 more sources

Phosphorus Pentoxide in Organic Synthesis-I: Phosphorus Pentoxide-Amine Hydrochloride Mixtures as Reagents in a New Synthesis of Hypoxanthines

Tetrahedron, 1982
E B Pedersen
exaly   +2 more sources

New C(2)-Substituted 8-Alkylsulfanyl-9-Phenylmethyl-Hypoxanthines III

Journal of Heterocyclic Chemistry, 2005
Title compounds were obtained starting from the key imidazole intermediate, 5-​amino-​1-​phenylmethyl-​2-​mercapto-​1H-​imidazole-​4-​carboxylic acid amide 5, readily derived from the base catalyzed rearrangement of a thiazole, 5-​amino-​2 ...
Giuliana Biagi, Valerio Scartoni, Irène Giorgi   +2 more
exaly   +3 more sources

Preparation of 9-Substituted Pyridine-Stretched Adenines and Hypoxanthines [PDF]

Synthesis, 2009
9-Methylsulfanyl pyridine-stretched adenine and hypoxanthine derivatives have been prepared via regioselective reaction of a 5-aminoimidazole with 2-(bis-methylsulfanylmethylene)malononitrile [(NC)C=C(SMe) ].
Christopher A Ramsden
exaly   +2 more sources