Results 21 to 30 of about 4,252,082 (308)

Solvent-free autocatalytic supramolecular polymerization [PDF]

open access: yesNature Materials, 2021
Abstract Solvent-free chemical manufacturing is one of the awaited technologies for addressing an emergent issue of serious environmental pollution. Here, we report "solvent-free autocatalytic supramolecular polymerization (SF-ASP)", where a phthalonitrile derivative with hydrogen-bonding side chains as the monomer is autocatalytically ...
Zhen Chen   +9 more
openaire   +2 more sources

Solvent- and Base-Free Oxidation of 5Hydroxymethylfurfural over a PdO/AlPO45 Catalyst under Mild Conditions

open access: yes, 2021
A solvent-free method was proposed to upgrade the biomass-derived compound 5-hydroxymethylfurfural (HMF). The oxidation of HMF to produce 2,5-furandicarboxylic acid (FDCA) has been examined in the presence of O2 without the addition of solvent and base ...
Zhe Wen   +11 more
core   +1 more source

Solvent-free synthesis of propargylamines: an overview

open access: yesRSC Advances, 2021
This review focuses on solvent-free methodologies for the synthesis of propargylamines, a versatile class of compounds with numerous applications.
Ravi Manujyothi   +2 more
openaire   +3 more sources

Solvent Control of Electron Transfer Dynamics [PDF]

open access: yes, 2003
We investigate the charge-transfer-to-solvent (CTTS) dynamics of sodide in several solvents. Since this CTTS system has only electronic degrees of freedom, the dynamics provide a window into how solvent motions control electron ...
Schwartz, Benjamin J.   +3 more
core   +2 more sources

Phase Behavior that Enables Solvent-Free Carbonate-Promoted Furoate Carboxylation [PDF]

open access: yes, 2020
A solvent-free transformation that enables production of polyester precursors from inedible biomass proceeds from a heterogeneous reaction mixture containing both solid and molten components.
Matthew, Kanan, Amy, Frankhouser
core   +2 more sources

Dynamics of solvent-free grafted nanoparticles [PDF]

open access: yesThe Journal of Chemical Physics, 2012
The diffusivity and structural relaxation characteristics of oligomer-grafted nanoparticles have been investigated with simulations of a previously proposed coarse-grained model at atmospheric pressure. Solvent-free, polymer-grafted nanoparticles as well as grafted nanoparticles in a melt were compared to a reference system of bare (ungrafted ...
Chremos, Alexandros   +2 more
openaire   +3 more sources

Mechanochemical Approach towards Multi-Functionalized 1,2,3-Triazoles and Anti-Seizure Drug Rufinamide Analogs Using Copper Beads

open access: yesMolecules, 2022
Highly regiospecific, copper-salt-free and neat conditions have been demonstrated for the 1,3-dipolar azide-alkyne cycloaddition (AAC) reactions under mechanochemical conditions.
Dhananjay Bhattacherjee   +9 more
doaj   +1 more source

Efficient One-Pot Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones via a Three-Component Biginelli Reaction

open access: yesMolecules, 2021
Multicomponent reactions are considered to be of increasing importance as time progresses due to the economic and environmental advantages such strategies entail.
Giovanna Bosica   +3 more
doaj   +1 more source

Solvent-Free Biocatalytic Synthesis of 2,5-bis-(Hydroxymethyl)Furan Fatty Acid Diesters from Renewable Resources

open access: yes, 2020
Fatty acid diesters of 2,5-bis-(hydroxymethyl)­furan (BHMF), promising candidates as sustainable bioadditives for increasing the cetane number of biodiesel fuels, were prepared through a solvent-free Novozym 435-mediated diesterification of BHMF with a ...
Florin-Dan Irimie (5666864)   +6 more
core   +1 more source

Catalyst-free and solvent-free Michael addition of 1,3-dicarbonyl compounds to nitroalkenes by a grinding method

open access: yesBeilstein Journal of Organic Chemistry, 2012
An environmentally benign, fast and convenient protocol has been developed for the Michael addition of 1,3-dicarbonyl compounds to β-nitroalkenes in good to excellent yields by a grinding method under catalyst- and solvent-free conditions.
Zong-Bo Xie   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy