452-15-3Relevant articles and documents
High Turnover Pd/C Catalyst for Nitro Group Reductions in Water. One-Pot Sequences and Syntheses of Pharmaceutical Intermediates
Gallou, Fabrice,Li, Xiaohan,Lipshutz, Bruce H.,Takale, Balaram S.,Thakore, Ruchita R.
, p. 8114 - 8118 (2021/10/25)
Commercially available Pd/C can be used as a catalyst for nitro group reductions with only 0.4 mol % Pd loading. The reaction can be performed using either silane as a transfer hydrogenating agent or simply a hydrogen balloon (μ1 atm pressure). With this technology, a series of nitro compounds was reduced to the desired amines in high chemical yields. Both the catalyst and surfactant were recycled several times without loss of reactivity.
Benzimidazole compound, and preparation method, intermediate and application thereof
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Paragraph 0168; 0169; 0170; 0171, (2016/10/20)
The invention discloses a benzimidazole compound, and a preparation method, an intermediate and an application thereof. The invention provides a benzimidazole compound A or a pharmaceutically-acceptable salt thereof, and also provides an application of th
Pd-catalyzed ortho-selective oxidative coupling of halogenated acetanilides with acrylates
Lee, George T.,Jiang, Xinglong,Prasad, Kapa,Repic, Oljan,Blacklock, Thomas J.
, p. 1921 - 1924 (2007/10/03)
Coupling of different halogenated acetanilides with acrylates using Pd-catalyzed ortho-selective C-H bond activation is reported. The yields of coupled products are low to high depending on the substrate. In general, arenes with electron-rich substituents like methoxy and methyl groups gave higher yields of the coupled products. The presence of the halogen substituent did not interfere with the activation process under these conditions.