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Autor:
Nicolas A. Corfù, Emanuela M. Bianchi, R. Bruce Martin, Yoshiaki Kinjo, Roger Tribolet, Helmut Sigel
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :507-511
The acidity constants of H2(NTP)2− [NTP4− = guanosine 5′-triphosphate (GTP4−) or inosine 5′-triphosphate (ITP4−)], which may lose three protons giving (NTP − H)5−, were determined by potentiometric pH titrations (25 °C; I = 0.1 M, Na
Autor:
M. Luz Godino-Salido, M. Teresa Albelda, Fernando Pina, Maria João Melo, Conxa Soriano, Santiago V. Luis, M. Alexandra Bernardo, Enrique García-España
Publikováno v:
Scopus-Elsevier
The interaction of the open-chain polyamine N-(3-aminopropyl)-N′-[3-(anthrylmethyl)aminopropyl]ethane-1,2-diamine (L) with the relevant anionic forms of adenosine 5′-triphosphate (ATP), adenosine 5′-diphosphate (ADP) and adenosine 5′-monophos
Autor:
Roger W. Alder, Zhao Jin
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :583
1-Aza-5-bora-4,6,11-trioxabicyclo[3.3.3]undecane (triethanolamine borate) reacts with methyl trifluoromethanesulfonate (triflate) with cleavage of one of the B–O bonds to give 1-(2-methoxyethyl)-1-aza-5-bora-4,6-dioxabicyclo[3.3.0]octan-1-ium trifl
Autor:
Paul van der Sluis, Jan A. Kanters, Vincent J. van Geerestein, Carel W. Funke, Huub Kooijman, Jan Kelder, Jan Kroon
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1581
The crystal and molecular structure of vecuronium bromide {1-[2β,3α,5α,16β,17β)-3,17-bis(acetyloxy)-2-(piperidin-1-yl)androstan-16-yl]-1-methylpiperidinium bromide}, a potent non-depolarizing neuromuscular blocking agent, has been determined by
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1859
Rate constants for addition of water and for deprotonation in aqueous acetonitrile have been measured for a series of ferrocenyl-stabilised carbocation salts. Both alcohol and alkene are formed from FcC(Ph)CH2R (Fc = ferrocenyl; R = Ph and But) and F
Autor:
Spencer E. Taylor, John R. Jones
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1253
Rates of detritiation from the C-8 position of xanthine, xanthosine, and a series of methylated xanthines (caffeine, theophylline, theobromine, and paraxanthine) have been measured over a pH range at 85°. In all cases the results can be interpreted
Proton transfer from heterocyclic compounds. Part IV. Guanine, guanosine, hypoxanthines, and inosine
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :174
Rates of detritiation from C-8 of guanine, guanosine, hypoxanthine, 9-methylhypoxanthine, and inosine have been measured over a pH range at 85°. Two parallel rate-determining reactions are involved: one involves attack by hydroxide ion on the N-7 pr
Autor:
Derek P. N. Satchell, David Penn
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :813
The kinetics of the mercury(II) ion-promoted hydrolysis of 2-phenyl-1,3-oxathiolan (1) have been studied at various pH values and ambient chloride ion concentrations using dioxan–water and ethanol–water solvents. The products are always benzaldeh
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :827
The isomerisation of benzylpenicillin to benzylpenicillenic acid is catalysed by imidazole, N-methylimidazole, and 2-methylimidazole. For each catalyst there is a different rate equation. The dominant reaction path is general acid assisted reaction o
Autor:
Spencer E. Taylor, John R. Jones
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1587
The rates of detritiation of 1-methyl[8-3H]guanosine, 7-methyl[8-3H]guanosine, and 1-methyl[8-3H]inosine have been measured over a pH range at 85 °C and the results compared with those already available for guanosine and inosine. At low pH where the