Using switchable solvent as a solvent and catalyst for in situ transesterification of spent coffee grounds for biodiesel synthesis.
Sign Up to like & getrecommendations! Published in 2019 at "Bioresource technology"
DOI: 10.1016/j.biortech.2019.121770
Abstract: This study developed a novel in situ transesterification process by combining the solvent and catalyst functions of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) for biodiesel synthesis from spent coffee grounds (SCG). The influence of reaction parameters on the reaction… read more here.
Keywords: solvent catalyst; spent coffee; transesterification; coffee grounds ... See more keywords
Microwave assisted solvent- and catalyst-free three-component synthesis of NH-1,2,3-triazoloimines
Sign Up to like & getrecommendations! Published in 2017 at "Tetrahedron"
DOI: 10.1016/j.tet.2017.05.077
Abstract: Highly efficient microwave-assisted solvent- and catalyst-free multicomponent synthesis of 5-R-imino-[4-trialkylsilyl(germyl)]-1H-1,2,3-triazoles from Si/Ge-substituted propynals, trimethylsilyl azide and functionalized primary amines has been developed. In the case of 2-aminoethanethiol, 4-element substituted 5-(1,3-thiazolan-2-yl)-1H-1,2,3-triazoles have been obtained. Their heterolysis… read more here.
Keywords: solvent catalyst; assisted solvent; microwave assisted; catalyst free ... See more keywords
Green Method for the Synthetic Ugi Reaction by Twin Screw Extrusion without a Solvent and Catalyst
Sign Up to like & getrecommendations! Published in 2020 at "ACS Omega"
DOI: 10.1021/acsomega.0c00369
Abstract: This study describes the solvent and catalyst-free Ugi reaction by way of twin screw extrusion (TSE). Multicomponent chemical synthesis can be converted into a single process without repeated use of solvents through TSE. High synthetic… read more here.
Keywords: solvent catalyst; twin screw; screw extrusion; ugi reaction ... See more keywords
Solvent and catalyst free synthesis of 3,4-dihydropyrimidin-2(1H)-ones/thiones by twin screw extrusion
Sign Up to like & getrecommendations! Published in 2019 at "Green Chemistry"
DOI: 10.1039/c9gc00036d
Abstract: Rapid, high yielding, and solvent and catalyst free synthesis of 3,4-dihydropyrimidin-2-(1H)-ones/thiones by twin screw extrusion. read more here.
Keywords: solvent catalyst; dihydropyrimidin ones; free synthesis; catalyst free ... See more keywords
Carbon dioxide utilization in the efficient synthesis of carbamates by deep eutectic solvents (DES) as green and attractive solvent/catalyst systems
Sign Up to like & getrecommendations! Published in 2019 at "New Journal of Chemistry"
DOI: 10.1039/c9nj02810b
Abstract: Deep eutectic solvents as a green solvent/catalyst system for directly synthesizing carbamates from amines, CO2 and alkyl halides. read more here.
Keywords: dioxide utilization; solvent catalyst; deep eutectic; eutectic solvents ... See more keywords
A solvent- and catalyst-free tandem reaction: synthesis, and photophysical and biological applications of isoindoloquinazolinones
Sign Up to like & getrecommendations! Published in 2020 at "New Journal of Chemistry"
DOI: 10.1039/c9nj05808g
Abstract: An easy green synthetic approach for fused isoindoloquinazolinones has been developed under neat reaction (yields up to 91%) conditions. This new one-pot tandem methodology involves condensation of readily available anthranilamide with 3-(2-formylcycloalkenyl)-acrylic ester under solvent-… read more here.
Keywords: catalyst free; solvent catalyst; free tandem; reaction ... See more keywords
Alkene–azide chemistry: a facile, one-step, solvent- and catalyst-free approach for developing new functional monomers and polymers
Sign Up to like & getrecommendations! Published in 2020 at "Polymer Chemistry"
DOI: 10.1039/d0py00346h
Abstract: In this study, a one-step Huisgen 1,3-dipolar cycloaddition reaction, alkene–azide chemistry, was explored using a solvent and catalyst free method forming 1,2,3-triazoline ring-containing molecules. This facile method was utilized by synthesizing a mini library of… read more here.
Keywords: solvent catalyst; monomers polymers; chemistry; functional monomers ... See more keywords
Solvent and catalyst free vitrimeric poly(ionic liquid) electrolytes
Sign Up to like & getrecommendations! Published in 2023 at "RSC Advances"
DOI: 10.1039/d3ra02396f
Abstract: Polymer electrolytes (PEs) are a promising alternative to overcome shortcomings of conventional lithium ion batteries (LiBs) and make them safer for users. Introduction of self-healing features in PEs additionally leads to prolonged life-time of LIBs,… read more here.
Keywords: ionic liquid; catalyst free; poly ionic; solvent catalyst ... See more keywords
1H,4H-Piperazine-diium Dichlorosulfonate: Structure Elucidation and its Dual Solvent–Catalyst Activity for the Synthesis of New Dihydro-[1,2,4]triazolo[1,5-a]pyrimidine Scaffolds
Sign Up to like & getrecommendations! Published in 2020 at "Australian Journal of Chemistry"
DOI: 10.1071/ch20022
Abstract: A new ionic liquid containing a 1H,4H-piperazine-diium ring and chlorosulfonate as a 1,4-dicationic core and counter ion, respectively, was designed and synthesised. The structure elucidation of this ionic liquid was conducted by 1D and 2D… read more here.
Keywords: solvent catalyst; ionic liquid; piperazine diium; structure elucidation ... See more keywords