Synergistic effects in Fe nanoparticles doped with ppm levels of (Pd + Ni). A new catalyst for sustainable nitro group reductions
作者:Haobo Pang、Fabrice Gallou、Hyuntae Sohn、Jeffrey Camacho-Bunquin、Massimiliano Delferro、Bruce H. Lipshutz
DOI:10.1039/c7gc02991h
日期:——
A remarkable synergistic effect has been uncovered between ppm levels of Pd and Ni embedded within iron nanoparticles that leads to mild and selective catalytic reductions of nitro-containing aromatics and heteroaromatics in water at room temperature. NaBH4 serves as the source of inexpensive hydride. Broad substrate scope is documented, along with several other features including: low catalyst loading
Facile aromatic nucleophilic substitution (S<sub>N</sub>Ar) reactions in ionic liquids: an electrophile–nucleophile dual activation by [Omim]Br for the reaction
作者:Xiao Zhang、Guo-ping Lu、Chun Cai
DOI:10.1039/c6gc01742h
日期:——
A facile aromatic nucleophilic substitutionreaction (SNAr) in recyclable [Omim]Br under relatively mild conditions has been described. An electrophile-nucleophile dual activation by [Omim]Br is also discovered based on control experiments,...
作者:Bandna、Nitul Ranjan Guha、Arun K. Shil、Dharminder Sharma、Pralay Das
DOI:10.1016/j.tetlet.2012.07.096
日期:2012.9
Ligand-free solid-supported nano and microparticles of Pd(0) (SS-Pd) were used as a heterogeneous catalyst in carbon-heteroatom bond formation reactions. Nitro substituted aryl halides reacted with oxygen, sulfur, and nitrogen nucleophiles to afford the corresponding products in good yields. A one-pot sequential cross coupling and nitro-reduction was also performed using the same SS-Pd catalyst to
CsF–Al2O3 mediated rapid condensation of phenols with aryl halides: comparative study of conventional heating vs. microwave irradiation
作者:Jhillu S. Yadav、Basi V. Subba Reddy
DOI:10.1039/b001824o
日期:——
Biaryl ethers and thio ethers are formed in high yields by the condensation of phenols and thiophenols with electron-deficient aryl halides using CsF supported on Al2O3 under microwave irradiation in solvent-free conditions.
[EN] ORGANIC REACTIONS CARRIED OUT IN AQUEOUS SOLUTION IN THE PRESENCE OF A HYDROXYALKYL(ALKYL)CELLULOSE OR AN ALKYLCELLULOSE<br/>[FR] RÉACTIONS ORGANIQUES RÉALISÉES DANS UNE SOLUTION AQUEUSE EN PRÉSENCE D'UNE HYDROXYALKYL(ALKYL)CELLULOSE OU D'UNE ALKYLCELLULOSE
申请人:ABBVIE DEUTSCHLAND
公开号:WO2017129796A1
公开(公告)日:2017-08-03
The present invention relates to a method of carrying out an organic reaction in aqueous solution in the presence of a hydroxyalkyl(alkyl)cellulose or an alkylcellulose.