Synthesis, tuberculosis inhibitory activity, and SAR study of N-substituted-phenyl-1,2,3-triazole derivatives
作者:Marilia S. Costa、Núbia Boechat、Érica A. Rangel、Fernando de C. da Silva、Alessandra M.T. de Souza、Carlos R. Rodrigues、Helena C. Castro、Ivan N. Junior、Maria Cristina S. Lourenço、Solange M.S.V. Wardell、Vitor F. Ferreira
DOI:10.1016/j.bmc.2006.08.019
日期:2006.12
The aim of this work was to describe the synthesis, the in vitro anti-Mycobacterium tuberculosis profile, and the structure-activity relationship (SAR) study of new N-substituted-phenyl-1,2,3-triazole-4-carbaldehydes (3a-l). The reactions of aromatic amine hydrochlorides with diazomalonaldehyde (1) produced several N-substituted-phenyl-1,2,3-triazole-4-carbaldehydes (3a-l) in moderate-to-good yields
1,2,3-Trimethoxypropane, a glycerol-based solvent with low toxicity: new utilization for the reduction of nitrile, nitro, ester, and acid functional groups with TMDS and a metal catalyst
solvent for the reduction of organic functions using either aluminium hydride or 1,1,3,3-tetramethyldisiloxane (TMDS) as a benign hydride source. In particular, a new process for the reduction of nitriles to amines in 2-MeTHF and in 1,2,3-TMP was developed, using TMDS in combination with copper triflate (Cu(OTf)2).
Iron-catalysed, general and operationally simple formal hydrogenation using Fe(OTf)<sub>3</sub> and NaBH<sub>4</sub>
作者:Alistair J. MacNair、Ming-Ming Tran、Jennifer E. Nelson、G. Usherwood Sloan、Alan Ironmonger、Stephen P. Thomas
DOI:10.1039/c4ob00945b
日期:——
An operationally simple and environmentally benign formal hydrogenation protocol has been developed using a highly abundant iron(iii) salt and an inexpensive, bench stable, stoichiometric reductant, NaBH4, in ethanol, under ambient conditions.
High graphite N content in nitrogen-doped graphene as an efficient metal-free catalyst for reduction of nitroarenes in water
作者:Fan Yang、Cheng Chi、Chunxia Wang、Ying Wang、Yongfeng Li
DOI:10.1039/c6gc00222f
日期:——
High graphite N content in nitrogen-doped graphene is synthesized by a one-step hydrothermal reaction, which can catalyze the reduction of nitroarenes by using a small amount of NaBH4 in water with high yield.
A novel tert-butoxycarbonylation reagent: 1-tert-butoxy-2-tert-butoxycarbonyl-1,2-dihydroisoquinoline (BBDI)
作者:Yukako Saito、Hidekazu Ouchi、Hiroki Takahata
DOI:10.1016/j.tet.2006.09.063
日期:2006.12
The use of 1-tert-butoxy-2-tert-butoxycarbonyl-1,2-dihydroisoquinoline (BBDI) as a tert-butoxycarbonylation reagent for acidic proton-containing substrates such as phenols, aromatic and aliphatic amines hydrochlorides, and aromatic carboxylic acids in the absence of a base is described. The reactions proceed chemoselectively in high yield under mild conditions.