Advance in constructing acid catalyst-solvent combinations for efficient transformation of glucose into 5-Hydroxymethylfurfural
Sign Up to like & getrecommendations! Published in 2020 at "Molecular Catalysis"
DOI: 10.1016/j.mcat.2020.111254
Abstract: Abstract 5-Hydroxymethylfurfural (HMF), derived from renewable lignocelluloses, has been certified as a vital platform molecule for biorefining process. However, it has been difficult to balance the factors (including HMF selectivity, cost, energy consumption, and environmental… read more here.
Keywords: catalyst solvent; acid catalyst; organic solvent; advance constructing ... See more keywords
An efficient approach for the synthesis of 5-hydroxy-chromeno[2,3-b]pyridines under catalyst and solvent free conditions
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DOI: 10.1039/c7gc01463e
Abstract: An efficient and sustainable method has been developed for the synthesis of novel 5-hydroxy-chromeno[2,3-b]pyridines by the reaction of 3-formylchromone, aromatic amines and malononitrile under catalyst and solvent-free conditions by simply stirring the components magnetically or… read more here.
Keywords: free conditions; catalyst solvent; chromeno pyridines; solvent free ... See more keywords
Catalyst- and solvent-freeipso-hydroxylation of arylboronic acids to phenols
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DOI: 10.1039/c9ra07201b
Abstract: A catalyst-free method for the hydroxylation of arylboronic acids to form the corresponding phenols with sodium perborate as the oxidant was developed using water as the solvent or solvent free condition. read more here.
Keywords: catalyst solvent; freeipso hydroxylation; solvent freeipso; arylboronic acids ... See more keywords
Tandem imine formation via auto-hydrogen transfer from alcohols to nitro compounds catalyzed by a nanomagnetically recyclable copper catalyst under solvent-free conditions
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DOI: 10.1039/d1ra02347k
Abstract: A direct imination reaction was developed by tandem reaction of alcohols and nitro compounds in the presence of Cu-isatin Schiff base-γ-Fe2O3 as a nanomagnetically recyclable catalyst under solvent-free conditions. By this method, various imines were… read more here.
Keywords: catalyst solvent; nanomagnetically recyclable; alcohols nitro; reaction ... See more keywords
P4O10/TfOH mediated domino condensation–cyclization of amines with diacids: a route to indolizidine alkaloids under catalyst- and solvent-free conditions
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DOI: 10.1039/d2ra02534e
Abstract: A domino condensation–cyclization method is developed to synthesize indolizidine alkaloids using a P4O10/TfOH reagent system without the employment of either a catalyst or solvent. The use of a few aliphatic and aromatic dicarboxylic acids is… read more here.
Keywords: condensation cyclization; domino condensation; indolizidine alkaloids; p4o10 tfoh ... See more keywords
Catalyst- and Solvent-Free Hydrophosphorylation of Ketones with Secondary Phosphine Oxides: Green Synthesis of Tertiary α-Hydroxyphosphine Oxides
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DOI: 10.1055/s-0040-1707945
Abstract: Tertiary α-hydroxyphosphine oxides have been synthesized via the catalyst- and solvent-free reaction between available secondary phosphine oxides and aliphatic, aromatic and heteroaromatic ketones at 20–62 °C in near to 96–98% yield. The developed method meets the… read more here.
Keywords: catalyst solvent; hydroxyphosphine oxides; hydroxyphosphine; secondary phosphine ... See more keywords
Hydrogenolysis and Activation of Soda Lignin Using [BMIM]Cl as a Catalyst and Solvent
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DOI: 10.3390/polym9070279
Abstract: To improve the reactivity of the soda lignin, an acid ionic liquid 1-butyl-3-mthylimidazolium chloride ([BMIM]Cl) was used as the catalyst and solvent to degrade the soda lignin through hydrogenolysis. Structural elucidation of the lignin samples… read more here.
Keywords: soda; catalyst solvent; soda lignin; hydrogenolysis activation ... See more keywords