Results 11 to 20 of about 244,930 (304)

Cyrene as a bio-based solvent for HATU mediated amide coupling [PDF]

open access: yesOrganic & Biomolecular Chemistry, 2018
Cyrene was found to be an effective bio-based solvent for HATU mediated amide bond formation.
Wilson, Kirsty L.   +3 more
openaire   +7 more sources

Synthesis of cholesterol-reducing sterol esters by enzymatic catalysis in bio-based solvents or solvent-free [PDF]

open access: yesRSC Advances, 2016
Enzymatic synthesis of a β-sitosterol ester under solvent free conditions and bio-based solvents was compared with conventional solvents.
Lanctôt, Adrienne Gallant   +4 more
openaire   +3 more sources

Diels–Alder Cycloaddition Reactions in Sustainable Media

open access: yesMolecules, 2022
Diels–Alder cycloaddition reaction is one of the most powerful strategies for the construction of six-membered carbocyclic and heterocyclic systems, in most cases with high regio- and stereoselectivity.
Maria I. L. Soares   +2 more
doaj   +1 more source

Cyrene: a bio-based solvent for the Mizoroki–Heck reaction of aryl iodides

open access: yesOrganic & Biomolecular Chemistry, 2023
Cyrene is employed as the reaction medium in the Mizoroki–Heck cross-coupling between aryl iodides with acrylates, acrylamides or styrene. Its application in the synthesis of piperlotine A is demonstrated.
Naya A. Stini   +2 more
openaire   +3 more sources

The Future of Polar Organometallic Chemistry Written in Bio‐Based Solvents and Water [PDF]

open access: yesChemistry – A European Journal, 2018
AbstractThere is a strong imperative to reduce the release of volatile organic compounds (VOCs) into the environment, and many efforts are currently being made to replace conventional hazardous VOCs in favour of safe, green and bio‐renewable reaction media that are not based on crude petroleum.
Joaquín García‐Álvarez   +2 more
openaire   +5 more sources

Insights on the use of alternative solvents and technologies to recover bio‐based food pigments [PDF]

open access: yesComprehensive Reviews in Food Science and Food Safety, 2020
Abstract This review will discuss, under the Circular Economy and Biorefinery concepts, the performance of the alternative solvents in the downstream process to recover natural pigments in a more sustainable way. Conventionally, pigments marketed on an industrial scale are produced through chemical synthesis by using petroleum ...
Leonardo M. de Souza Mesquita   +4 more
openaire   +3 more sources

Optimisation of solvent replacement procedures according to economic and environmental criteria in pharmaceutical industry [PDF]

open access: yes, 2006
During pharmaceutical syntheses, the reaction solvent has often to be switched off from one reaction step to the following one. Because of the standard industrial practices, solvent replacement generally constitutes a slow and high solvent-consuming ...
Elgue, Sébastien   +4 more
core   +1 more source

Co-processing of Biomass Waste and HeavyOil Fraction as an Effective Way for Fuel Production

open access: yesChemical Engineering Transactions, 2022
The integration of biofuel upgrading processes in the existing technologies of crude oil refining is considered to be one of the promising directions for the production of liquid motor fuels.
Anastasia A. Dmitrieva   +5 more
doaj   +1 more source

Solvent-based extraction of antimicrobial phytochemicals.

open access: yes, 2023
Solvent-based extraction of antimicrobial phytochemicals.
Shahid Wahab (17291198)   +6 more
core   +1 more source

Influence of solvent choice on the optimisation of a reaction–separation operation : application to a Beckmann rearrangement reaction [PDF]

open access: yes, 2004
In pharmaceutical syntheses, the solvent choice generally represents a complex design step. Traditionally, this choice is operated according to criteria connected with the reaction step and without any consideration on the following separation steps. The
Elgue, Sébastien   +6 more
core   +1 more source

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