Category «synthesis»

Cp2TiCl: An Ideal Reagent for Green Chemistry?

It’s only fair to share…     The development of Green Chemistry inevitably involves the development of green reagents. In this review, we highlight that Cp2TiCl is a reagent widely used in radical and organometallic chemistry, which shows, if not all, at least some of the 12 principles summarized for Green Chemistry, such as waste …

Green Synthesis of Veratraldehyde Using Potassium Promoted Lanthanum–Magnesium Mixed Oxide Catalyst

It’s only fair to share…   Veratraldehyde is an important chemical used in perfumery, agrochemical, and pharmaceutical industries. Current processes of manufacture of veratraldehyde use homogeneous catalysts, which make them highly polluting, creating problems of disposal of effluents and product purity. In the current work, veratraldehyde was synthesized from O-alkylation of vanillin with an environmentally …

Iridium-catalyzed highly efficient chemoselective reduction of aldehydes in water using formic acid as the hydrogen source

It’s only fair to share…   Iridium-catalyzed highly efficient chemoselective reduction of aldehydes in water using formic acid as the hydrogen source Green Chem., 2017, Advance Article DOI: 10.1039/C7GC01289F, Paper Zhanhui Yang, Zhongpeng Zhu, Renshi Luo, Xiang Qiu, Ji-tian Liu, Jing-Kui Yang, Weiping Tang A highly efficient iridium catalyst is developed for the chemoselective reduction …

Selective synthesis of dimethoxyethane via directly catalytic etherification of crude ethylene glycol

It’s only fair to share…   Selective synthesis of dimethoxyethane via directly catalytic etherification of crude ethylene glycol Green Chem., 2017, Advance Article DOI: 10.1039/C7GC00659D, Paper Weiqiang Yu, Fang Lu, Qianqian Huang, Rui Lu, Shuai Chen, Jie Xu A potential diesel fuel additive, dimethoxyethane, was highly selectively produced via etherification of crude ethylene glycol over …

Selective hydrogenation of N-heterocyclic compounds using Ru nanocatalysts in ionic liquids

It’s only fair to share…   Selective hydrogenation of N-heterocyclic compounds using Ru nanocatalysts in ionic liquids Green Chem., 2017, 19,2762-2767 DOI: 10.1039/C7GC00513J, Communication Hannelore Konnerth, Martin H. G. Prechtl N-Heterocyclic compounds have been tested in the selective hydrogenation catalysed by small 1-3 nm sized Ru nanoparticles (NPs) embedded in various imidazolium based ionic liquids …

Is water a suitable solvent for the catalytic amination of alcohols?

It’s only fair to share… Is water a suitable solvent for the catalytic amination of alcohols? Green Chem., 2017, 19,2839-2845 DOI: 10.1039/C7GC00422B, Paper Johannes Niemeier, Rebecca V. Engel, Marcus Rose The catalytic aqueous-phase amination of biogenic alcohols with solid catalysts is reported for future development of renewable amine value-added chains. From the journal: Green Chemistry …

Fe/ppm Cu nanoparticles as a recyclable catalyst for click reactions in water at room temperature

It’s only fair to share… Fe/ppm Cu nanoparticles as a recyclable catalyst for click reactions in water at room temperature Green Chem., 2017, 19,2506-2509 DOI: 10.1039/C7GC00883J, Communication Aurelien Adenot, Evan B. Landstrom, Fabrice Gallou, Bruce H. Lipshutz Nanomicelles housing a terminal alkyne and azide are delivered to ppm Cu-containing nanoparticles that catalyse click reactions in …

Dr. Vinayak Pagar( GUEST BLOGGER) Development of a Povarov Reaction/Carbene Generation Sequence for Alkenyldiazocarbonyl Compounds

It’s only fair to share… Discussing my paper…….. Metal-catalyzed cycloadditions of alkenyldiazo reagents are useful tools to access carbo- and heterocycles.[1] These diazo compounds are chemically sensitive toward both Brønsted orLewis acids. Their reported cycloadditions rely heavily on the formation of metal carbenes to initiate regio- and stereoselective [3+n] cycloadditions (n=2–4) with suitable dipolarophiles.[2–4] A noncarbene route was postulated for a …

The greening of peptide synthesis

It’s only fair to share…   The greening of peptide synthesis Stefan B. Lawrenson,a  Roy Arava  and  Michael North*a  *Corresponding authors aGreen Chemistry Centre of Excellence, Department of Chemistry, University of York, York, UK E-mail: Michael.north@york.ac.uk Abstract The synthesis of peptides by amide bond formation between suitably protected amino acids is a fundamental part of …