Pd/mannose promoted tandem cross coupling-nitro reduction: expedient synthesis of aminobiphenyls and aminostilbenes
作者:Sandeep Rohilla、Pradeep Pant、Nidhi Jain
DOI:10.1039/c5ra04129e
日期:——
d-Mannose as a ligand for Pd catalyzed cross-coupling, and as a hydrogen source for nitro reduction in a modular one-pot cross coupling-nitro reduction sequence.
d-甘露糖作为钯催化的交叉偶联反应的配体,以及作为模块化的一锅交叉偶联-硝基还原序列中的氢源。
3-Hydroxypyrimidine-2,4-diones as Selective Active Site Inhibitors of HIV Reverse Transcriptase-Associated RNase H: Design, Synthesis, and Biochemical Evaluations
作者:Jing Tang、Feng Liu、Eva Nagy、Lena Miller、Karen A. Kirby、Daniel J. Wilson、Bulan Wu、Stefan G. Sarafianos、Michael A. Parniak、Zhengqiang Wang
DOI:10.1021/acs.jmedchem.5b01879
日期:2016.3.24
achieve selective RNaseHinhibition. Biochemical studies showed the two subtypes with an N-1 methyl group (9 and 10) inhibited RNaseH in low micromolar range without siginificantly inhibiting RT polymerase, whereas the N-1 unsubstituted subtype 11 inhibited RNaseH in submicromolar range and RT polymerase in low micromolar range. Subtype 11 also exhibited substantially reduced inhibition in the HIV-1
The invention relates to 2-(benzimidazol-1-yl)-acetamide bisaryl derivative having the general Formula I
wherein n is 0 or 1; Ar
1
represents a diradical derived from a 5- or-6-membered aromatic ring, optionally comprising 1-3 heteroatoms selected from N, O and S, said ring being optionally substituted with (C
1-4
)alkyl, (C
1-4
)alkyloxy, halogen, CF
3
or cyano; Ar
2
represents a 6-membered aryl ring, optionally comprising 1-3 nitrogen atoms, said ring being optionally substituted with 1-3 substituents selected from (C
1-4
)alkyl (optionally substituted with 1 or more halogens), (C
1-4
)alkyloxy (optionally substituted with 1 or more halogens), di(C
1-4
)alkylamino, halogen, CF
3
or cyano; or a pharmaceutically acceptable salt thereof; to pharmaceutical compositions comprising the same and to the use of said 2-(benzimidazol-1-yl)-acetamide bisaryl derivatives in the treatment of TRPV1 mediated disorders.
Simple Amine/Pd(OAc)<sub>2</sub>-Catalyzed Suzuki Coupling Reactions of Aryl Bromides under Mild Aerobic Conditions
作者:Bin Tao、David W. Boykin
DOI:10.1021/jo040147z
日期:2004.6.1
A new palladium catalyst (DAPCy) made from Pd(OAc)2 and commercially available, inexpensive dicyclohexylamine has been developed for the Suzuki coupling reaction of aryl bromides with boronic acids to give the coupling products in good to high yields. The air-stable catalyst was characterized and well-defined by X-ray crystallography. A catalytic system involving DAPCy in dioxane demonstrates a temperature-dependent
Poly(o-aminothiophenol)-stabilized Pd nanoparticles as efficient heterogenous catalysts for Suzuki cross-coupling reactions
作者:Yuan Chen、Minggui Wang、Long Zhang、Yan Liu、Jie Han
DOI:10.1039/c7ra09947a
日期:——
surfactant. The redox reaction between o-aminothiophenol and Pd(NO3)2 leads to the simultaneous formation of a PATP polymer and Pd nanoparticles. The PATP-stabilized Pd nanoparticles have been characterized by TEM, FTIR, XRD, ICP-MS and XPS. Catalytic results showed that PATP-stabilized Pd nanoparticles were highly stable and active catalysts for Suzukicross-couplingreactions, where high yields could