Results 31 to 40 of about 173,009 (382)

A Direct Method for Synthesis of Quinoxalines and Quinazolinones Using Epoxides as Alkyl Precursor

Molecules, 2023
An iodine-mediated one-pot synthesis of pyrrolo/indolo [1,2-a]quinoxalines and quinazolin-4-one via utilizing epoxides as alkyl precursors under metal-free conditions has been described.
Xueyan Lv, Lili Lv, Shichen Li, Chengcheng Ding, Bingchuan Yang, Chen Ma   +5 more
doaj   +1 more source

Oxidation of cycloalkene using supported ruthenium catalysts under solvent-free conditions [PDF]

Chemical Industry and Chemical Engineering Quarterly, 2022
The present paper employs supported ruthenium nanoparticles alongside catalytic quantities of the radical initiator, which are proven to be capable of cyclooctene oxidation with green conditions, in the absence of solvent, with air as the main oxidant ...
Alsaiari Raiedhah Abdullah
doaj   +1 more source

Ring-opening copolymerization (ROCOP): synthesis and properties of polyesters and polycarbonates [PDF]

, 2015
Controlled routes to prepare polyesters and polycarbonates are of interest due to the widespread application of these materials and the opportunities provided to prepare new copolymers. Furthermore, ring-opening copolymerization may enable new poly(ester–
Brooks, R, Paul, S, Romain, C, Saini, PK, Williams, CK, Zhu, Y   +5 more
core   +1 more source

Anti-Markovnikov alcohols via epoxide hydrogenation through cooperative catalysis

Science, 2019
Markovnikov falls to chromium and titanium Ring opening of strained triangular epoxides is a versatile method for making alcohols. However, these reactions are limited by their tendency to leave the oxygen on the more heavily substituted carbon, in ...
Chengbo Yao, Tobias Dahmen, A. Gansäuer, J. Norton   +3 more
semanticscholar   +1 more source

Use of Ionic Liquids and Co-Solvents for Synthesis of Thin-Film Composite Membranes

Membranes, 2021
Polyamide (PA) thin-film composite (TFC) membranes are commonly applied in reversed osmosis (RO) and nanofiltration (NF) applications due to their thin, dense top-layer, and high selectivity. Recently, the conventional organic phase (i.e., hexane) during
Peter-Renaat Van den Mooter, Liridona Dedvukaj, Ivo F. J. Vankelecom   +2 more
doaj   +1 more source

Kinetic Resolution in Asymmetric Epoxidation using Iminium Salt Catalysis [PDF]

, 2013
The first reported examples of kinetic resolution in epoxidation reactions using iminium salt catalysis are described, providing up to 99% ee in the epoxidation of racemic cis ...
Allin, Steven M., Appleby, Louise F., Buckley, Benjamin R., Bulman Page, Philip C., Chan, Yohan, Day, David P., Mckenzie, Michael J., Slawin, Alexandra M. Z.   +7 more
core   +1 more source

Biocatalytic Conversion of Epoxides [PDF]

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Erik J. de Vries, Dick B. Janssen
openaire   +4 more sources

Water and Aqueous Mixtures as Convenient Alternative Media for Organoselenium Chemistry

Molecules, 2016
Even if water is the natural environment for bioorganic reactions, its use in organic chemistry is often severely limited by the high insolubility of the organic derivatives.
Claudio Santi, Raquel G. Jacob, Bonifacio Monti, Luana Bagnoli, Luca Sancineto, Eder J. Lenardão   +5 more
doaj   +1 more source

In-Situ Epoxidation of Waste Cooking Oil and Its Methyl Esters for Lubricant Applications: Characterization and Rheology

Lubricants, 2021
In the present investigation, in-situ epoxidation of waste cooking oil and its methyl esters was prepared, and the rheological behavior was analyzed for biolubricant applications.
Atanu Kumar Paul, Venu Babu Borugadda, Vaibhav V. Goud   +2 more
doaj   +1 more source

Organocatalyzed enantioselective desymmetrization of aziridines and epoxides

Beilstein Journal of Organic Chemistry, 2013
Enantioselective desymmetrization of meso-aziridines and meso-epoxides with various nucleophiles by organocatalysis has emerged as a cutting-edge approach in recent years.
Ping-An Wang
doaj   +1 more source