Results 31 to 40 of about 17,683 (202)

Synthesis of novel room temperature chiral ionic liquids. application as reaction media for the heck arylation of aza-endocyclic acrylates. [PDF]

, 2010
New achiral and chiral RTILs were prepared using novel and/or optimized synthetic routes. These new series of imidazolinium, imidazolium, pyridinium and nicotine-derived ionic liquids were fully characterized including differential scanning calorimetry ...
Correia, Carlos R. D., Dandurand, Jany, Génisson, Yves, Pastre, Julio C., Saffon, Nathalie   +4 more
core   +4 more sources

Recovery of Rare Earth Oxide from Waste NiMH Batteries by Simple Wet Chemical Valorization Process

Metals, 2019
Nickel metal hydride (NiMH) batteries contain a significant amount of rare earth metals (REMs) such as Ce, La, and Nd, which are critical to the supply chain.
Nak-Kyoon Ahn, Basudev Swain, Hyun-Woo Shim, Dae-Weon Kim   +3 more
doaj   +1 more source

Synthesis and characterization of (.eta.5-C5Me5)2Ti(R)Cl (R = Me, Et, n-Pr, CH:CH2, Ph, O-n-Pr) and their salt metathesis reactions. Thermal decomposition pathways of (.eta.5-C5Me5)2Ti(Me)R' (R' = Et, CH:CH2, Ph, CH2Ph) [PDF]

Organometallics, 1992
Complexes Cp*2Ti(R)Cl (Cp* = η5-C5Me5; R = Me (1), Et (2), n-Pr (3), CH=CH2 (41, Ph (5), O-n-Pr (6)) have been prepared by oxidation of Cp*2TiR with lead dichloride. Not every compound Cp*2Ti(R)Cl was accessible and for R = CH2CMe3 and CH2Ph reduction to Cp*2TiCl and R· was observed.
Luinstra, Gerrit A., Teuben, Jan H.
openaire   +2 more sources

Stereoselective protecting group free synthesis of d,l-gulose ethyl glycoside via multicomponent enyne cross metathesis—hetero Diels–Alder reaction [PDF]

, 2009
An efficient and stereoselective synthesis of d,l-gulose was described. The key step of the synthetic route is represented by a multicomponent enyne cross metathesis—hetero Diels–Alder reaction which allows the formation of the pyran ring from cheap and ...
Aoyagi, Boger, Boger, Bonini, Castagnolo, Chuit, Daniele Castagnolo, Dondoni, Furin, Giessert, Katano, Lorenzo Botta, Maimone, Maurizio Botta, Meyer zu Reckendorf, Minster, Petitou, Schaefer, Sinay, Takahashi, Tollefsen, Trachtenberg, Umezawa   +22 more
core   +1 more source

Merging Biocatalysis and Chemocatalysis in Flow: State‐of‐the‐Art and Future Directions for Sustainable Synthesis

Angewandte Chemie, EarlyView.
This review highlights recent advances in integrating biocatalysis and chemocatalysis in continuous flow to create streamlined, sustainable processes. It examines chemo‐enzymatic cascades combining at least one enzymatic and one chemical step, discusses challenges such as enzyme immobilization, leaching, and reactor clogging, and presents solutions ...
Petros Siasiaridis, Matteo Damian, Francesco G. Mutti   +2 more
wiley   +2 more sources

Alkali and Alkaline Earth Metal Complexes Ligated by an Ethynyl Substituted Cyclopentadienyl Ligand

Inorganics, 2017
Sodium, potassium, and calcium compounds of trimethyl((2,3,4,5-tetramethylcyclopentadien-1-yl)ethynyl)silane (CpMe4(C≡CSiMe3)) were synthesized and characterized by X-ray diffraction and standard analytical methods.
Tim Seifert, Peter W. Roesky
doaj   +1 more source

The Far Side of Carboranes: Anticancer Active Monocations and Ambiently Stable Dications

Angewandte Chemie, EarlyView.
This work describes the synthesis of bench‐stable dicationic carboranes. Their enhanced electrophilicity is documented by opening the clusters with weak nucleophiles or dihydrogen. The surprising stability of positively charged carboranes in water enabled a study of their in vitro antiproliferative activity, which surpassed the effects of doxorubicin ...
Vlastimil Němec, Josef Holub, Maksim A. Samsonov, Zdeňka Růžičková, Josef Cvačka, Ján Vančo, Zdeněk Trávníček, Jan Belza, Zdeněk Dvořák, Jan Vrána, Aleš Růžička   +10 more
wiley   +2 more sources

Lithium and aluminium carbamato derivatives of the utility amide 2, 2, 6, 6- tetramethylpiperidide [PDF]

, 2010
Insertion of CO2 into the metal-N bond of a series of synthetically-important alkali-metal TMP (2,2,6,6-tetramethylpiperidide) complexes has been studied.
Abram, Alan R. Kennedy, Andrews, Aresta, Armstrong, Ball, Belforte, Butler, Chang, Conway, Conway, David E. Oliver, Davies, Dell'Amico, Dell'Amico, Feier-Iova, Garcia-Álvarez, Gehrhus, Habereder, Hagadorn, Hyvärinen, Inoue, Katritzky, Knabel, Knabel, Köhn, Lappert, Lucht, Maruoka, Mulvey, Mulvey, Mulvey, Naruse, Nozaki, Otero, Otero, Otero, Rathke, Remenar, Robert E. Mulvey, Sheldrick, Stuart D. Robertson, Tanaka, Tang, Vauthey, Williard, Woodcock, Wu, Yang, Yasuda, Yasuda   +50 more
core   +1 more source

Back to the Electrofuture: Named Reactions Powered by Electroorganic Syntheses. [PDF]

ChemSusChem
Bridging classical named reactions with modern electroorganic chemistry, this review presents how electrochemical strategies can revive and reinterpret historically significant transformations, highlighting their emerging potential as sustainable alternatives in contemporary organic synthesis.
Maiti D, Heo Y, Kang G, Kim M, Choi I.
europepmc   +2 more sources

Structurally Constrained Stibenium: Metallomimetic C−Si Bond Activation

Angewandte Chemie, EarlyView.
A structurally constrained stibenium cation supported by a 2,6‐bis(o‐carborano)pyridine pincer‐type ligand was prepared, and its preliminary reactivity toward silanes was investigated. Remarkably, Si−C bonds in silanes undergo activation via an oxidative‐addition‐type process at the cationic Sb center.
Donia Toami, Roman Dobrovetsky
wiley   +2 more sources