69219-13-2Relevant academic research and scientific papers
A Reversible Liquid Organic Hydrogen Carrier System Based on Methanol-Ethylenediamine and Ethylene Urea
Xie, Yinjun,Hu, Peng,Ben-David, Yehoshoa,Milstein, David
supporting information, p. 5105 - 5109 (2019/03/11)
A novel liquid organic hydrogen carrier (LOHC) system, with a high theoretical hydrogen capacity, based on the unpresented hydrogenation of ethylene urea to ethylenediamine and methanol, and its reverse dehydrogenative coupling, was established. For the dehydrogenation only a small amount of solvent is required. This system is rechargeable, as the H2-rich compounds could be regenerated by hydrogenation of the resulting dehydrogenation mixture. Both directions for hydrogen loading and unloading were achieved using the same catalyst, under relatively mild conditions. Mechanistic studies reveal the likely pathway for H2-lean compounds formation.
Facile solid-phase synthesis of AICAR 5-monophosphate (ZMP) and its 4-N-Alkyl derivatives
Oliviero, Giorgia,D'Errico, Stefano,Borbone, Nicola,Amato, Jussara,Piccialli, Vincenzo,Piccialli, Gennaro,Luciano, Mayoi
experimental part, p. 1517 - 1524 (2010/06/16)
We report herein a facile, solid-phase synthesis of 5-aminol-β-D- ribofuranosylimidazole-4-carboxamide-5'-monophosphate (ZMP), a biosynthetic precursor of purine nucleotides, as well as a small collection of its 4-N-alkyl derivatives. The very difficult, direct, chemical phosphorylation of 5-amino-lβ-D-ribofuranosylimidazole-4-carboxamide (AICAR) was circumvented by installing a suitable, fully protected, phos phate group on the 5'-position of A-l-(2,4-dinitrophenyl)inosine, connected to the solid support through the 2',3'-positions, prior to the purine degradation, which led to the 5amino-imidazole-4-ca:rboxamide moiety. A plausible reaction mechanism for the formation of the ZMP imidazole was also reported.
