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End date: 2009 × Start date: 2000 × DDC: 540 × Subject: chemistry ×

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    Pyrimidine acyclo-C-nucleosides by ring transformations of 2-formyl-L-arabinal
    (Basel : MDPI, 2005) Bari, A.; Feist, H.; Michalik, M.; Peseke, K.
    The protected 2-formyl-L-arabinal 2 reacted with thiourea and cyanamide in the presence of sodium hydride to afford via ring transformations the 5-[1R,2S-1,2-bis(benzyloxy)-3-hydroxypropyl]-1,2-dihydropyrimidines 3 and 4, respectively. Similarly, treatment of 2 with 3-amino-2H-1,2,4-triazole yielded 6-[1R,25-1,2-bis(benzyloxy)-3-hydroxypropyl][1,2,4]-triazolo[1,5-a]pyrimidine(5) .
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    Local protonation control using plasmonic activation
    (Cambridge : RSC, 2001) Singh, P.; Deckert, V.
    Localized protonation of 4-mercaptopyridine (4-MPY), activated by light in the presence of silver nanoparticles is monitored under ambient conditions using surface-enhanced Raman scattering (SERS) and tip-enhanced Raman scattering (TERS). The reaction can be controlled by the excitation wavelength and the atmospheric conditions, thus, providing a tool for site-specific control of protonation.