Green Carbon Science: Scientific Basis for Integrating Carbon Resource Processing, Utilization, and Recycling

He, Mingyuan; Sun, Yuhan; Han, Buxing

doi:10.1002/anie.201209384

Cited by 817 publications

(406 citation statements)

References 247 publications

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“…K 2 CO 3 and TBD (2,3,4,6,7,8-hexaydro-1H-pyrimido[1,2-a]pyrimidine), were evaluated in the presence of Ag 2 O( entries [5][6][7][8][9][10][11]. The strong organic base TMG gave the most promising result with 30 %y ield of 3a (entry 5).…”

Section: Optimization Of the Reaction Conditionsmentioning

confidence: 99%

Ag^I/TMG‐Promoted Cascade Reaction of Propargyl Alcohols, Carbon Dioxide, and 2‐Aminoethanols to 2‐Oxazolidinones

Song

Lang

et al. 2017

ChemPhysChem

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Chemical valorization of CO2 to access various value‐added compounds has been a long‐term and challenging objective from the viewpoint of sustainable chemistry. Herein, a one‐pot three‐component reaction of terminal propargyl alcohols, CO2, and 2‐aminoethanols was developed for the synthesis of 2‐oxazolidinones and an equal amount of α‐hydroxyl ketones promoted by Ag2O/TMG (1,1,3,3‐tetramethylguanidine) with a TON (turnover number) of up to 1260. By addition of terminal propargyl alcohol, the thermodynamic disadvantage of the conventional 2‐aminoethanol/CO2 coupling was ameliorated. Mechanistic investigations including control experiments, DFT calculation, kinetic and NMR studies suggest that the reaction proceeds through a cascade pathway and TMG could activate propargyl alcohol and 2‐aminoethanol through the formation of hydrogen bonds and also activate CO2.

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Section: Optimization Of the Reaction Conditionsmentioning

confidence: 99%

Ag^I/TMG‐Promoted Cascade Reaction of Propargyl Alcohols, Carbon Dioxide, and 2‐Aminoethanols to 2‐Oxazolidinones

Song

Lang

et al. 2017

ChemPhysChem

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“…Various value-added chemicals were synthesized using CO 2 as a C1 building block via the construction of C-H, C-N, C-O, and C-C bonds [17][18][19][20][21][22]. The formation of the C-S bond is one of the important transformations in organic synthesis [23,24], and the construction of C-S bonds using CO 2 as a C1 source is an interesting topic.…”

Section: Introductionmentioning

confidence: 99%

Organic Base-Catalyzed C–S Bond Construction from CO2: A New Route for the Synthesis of Benzothiazolones

Gao

Deng

et al. 2018

Catalysts

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Abstract:The synthesis of organosulfur compounds via the construction of C−S bonds using CO 2 as a C1 resource is very interesting. Herein, a novel method of synthesizing benzothiazolones via the cyclocarbonylation of 2-aminothiophenols with CO 2 was developed. A series of organic bases was investigated for the catalysis of cyclocarbonylation, and 1,5-diazabicyclo[4.3.0]non-5-ene (DBN) displayed the best catalytic activity. Then, various reaction parameters such as CO 2 pressure, temperature, amount of catalyst, and reaction time for the catalytic performance were studied. Finally, a series of benzothiazolones was synthesized under the optimal reaction conditions, and a possible catalytic mechanism was also proposed.

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“…In parallel with improving the utilization efficiency of fossil resources, it is essential to search sustainable and renewable resources for human beings in the long run (Beach et al 2009;Shui et al 2011;He et al 2013). Biomass is believed to be green and renewable carbon resources with the advantages of large reserves, broad distribution, and abundance in varieties (Ruppert et al 2012;Tuck et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Using benzene carboxylic acids to prepare zirconium-based catalysts for the conversion of biomass-derived furfural

Zhou

Sha

Xiao

et al. 2017

Int J Coal Sci Technol

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Benzene carboxylic acid (BCAs) are common and useful chemical blocks, which can be derived from the abundant low rank coals (LRCs) via oxidative degradation. In this work, we proposed a novel strategy to utilize BCAs as raw materials to prepare catalysts with transition metal zirconium, and the prepared catalysts were applied into the conversion of the renewable biomass resources. Typical model BCAs in the oxidative products of LRCs, including pyromellitic acid, trimesic acid (TMSA), trimellitic acid, and benzoic acid, were used as the block to construct the ZrBCAs catalysts. The chemoselective conversion of furfural into furfuryl alcohol (FAL), an important reaction in the biomass conversion chain, is chosen to evaluate the activity of the catalysts. The preparation conditions of the catalysts and experiment factors during the reaction were systematically investigated. The prepared catalysts were characterized by SEM, TEM, XRD and TG-DTG. The results showed that the prepared catalysts were efficient for the conversion of furfural into FAL, among which Zr-TMSA gave the highest activity. Zr-TMSA could be recycled for ten times without obvious deactivation, indicating an excellent stability. The strategy proposed in this work may be beneficial for the value-added utilization of both LRCs and biomass resources.Graphical Abstract Zr-BCAs catalysts prepared using benzene carboxylic acids and Zr are very efficient and stable for hydrogenation of biomass-derived furfural to furfuryl alcohol at mild conditions.

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Green Carbon Science: Scientific Basis for Integrating Carbon Resource Processing, Utilization, and Recycling

Cited by 817 publications

References 247 publications

Ag^I/TMG‐Promoted Cascade Reaction of Propargyl Alcohols, Carbon Dioxide, and 2‐Aminoethanols to 2‐Oxazolidinones

Ag^I/TMG‐Promoted Cascade Reaction of Propargyl Alcohols, Carbon Dioxide, and 2‐Aminoethanols to 2‐Oxazolidinones

Organic Base-Catalyzed C–S Bond Construction from CO2: A New Route for the Synthesis of Benzothiazolones

Using benzene carboxylic acids to prepare zirconium-based catalysts for the conversion of biomass-derived furfural

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Green Carbon Science: Scientific Basis for Integrating Carbon Resource Processing, Utilization, and Recycling

Cited by 817 publications

References 247 publications

AgI/TMG‐Promoted Cascade Reaction of Propargyl Alcohols, Carbon Dioxide, and 2‐Aminoethanols to 2‐Oxazolidinones

AgI/TMG‐Promoted Cascade Reaction of Propargyl Alcohols, Carbon Dioxide, and 2‐Aminoethanols to 2‐Oxazolidinones

Organic Base-Catalyzed C–S Bond Construction from CO2: A New Route for the Synthesis of Benzothiazolones

Using benzene carboxylic acids to prepare zirconium-based catalysts for the conversion of biomass-derived furfural

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Product

Resources

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Ag^I/TMG‐Promoted Cascade Reaction of Propargyl Alcohols, Carbon Dioxide, and 2‐Aminoethanols to 2‐Oxazolidinones

Ag^I/TMG‐Promoted Cascade Reaction of Propargyl Alcohols, Carbon Dioxide, and 2‐Aminoethanols to 2‐Oxazolidinones