Copper(II)-induced oxidations of aromatic substrates: catalytic conversion of catechols to o-benzoquinones. Copper phenoxides as intermediates in the oxidation of phenol, and a single-step conversion of phenol, ammonia, and oxygen into muconic acid mononitrile

1981 ◽  
Vol 103 (19) ◽  
pp. 5795-5804 ◽  
Author(s):  
Timothy R. Demmin ◽  
Michael D. Swerdloff ◽  
Milorad M. Rogic
Keyword(s):  
Catalytic Conversion ◽  
Single Step ◽  
Muconic Acid ◽  
Aromatic Substrates ◽  
Oxidation Of Phenol

Catalytic conversion of furfural to methyl levulinate in a single-step route over Zr/SBA-15 in near-critical methanol

2018 ◽  
Vol 333 ◽  
pp. 434-442 ◽  
Author(s):  
Hao Chen ◽  
Houhang Ruan ◽  
Xilei Lu ◽  
Jie Fu ◽  
Timothy Langrish ◽  
...  
Keyword(s):  
Catalytic Conversion ◽  
Single Step ◽  
Methyl Levulinate

scholarly journals cis,cis-Muconic acid isomerization and catalytic conversion to biobased cyclic-C6-1,4-diacid monomers

2017 ◽  
Vol 19 (13) ◽  
pp. 3042-3050 ◽  
Author(s):  
Jack M. Carraher ◽  
Toni Pfennig ◽  
Radhika G. Rao ◽  
Brent H. Shanks ◽  
Jean-Philippe Tessonnier
Keyword(s):  
Terephthalic Acid ◽  
Catalytic Conversion ◽  
Muconic Acid ◽  
Acid Isomerization ◽  
Cyclohexanedicarboxylic Acid

Renewable monomers from biologically-produced intermediates: unlocking the isomerization of cis,trans- to trans,trans-muconic acid for the production of renewable 1,4-cyclohexanedicarboxylic acid and terephthalic acid.

scholarly journals First-principles-informed energy span and microkinetic analysis of ethanol catalytic conversion to 1,3-butadiene on MgO

2021 ◽  
Author(s):  
Astrid Boje ◽  
William E Taifan ◽  
Henrik Ström ◽  
Tomáš Bučko ◽  
Jonas Baltrusaitis ◽  
...  
Keyword(s):  
Kinetic Modeling ◽  
Process Design ◽  
First Principles ◽  
Catalytic Conversion ◽  
Single Step

Kinetic modeling of single-step catalytic conversion of ethanol to 1,3-butadiene is necessary to inform accurate process design. This paper uses first-principles-informed energy span and microkinetic analysis to explore the reaction...

Maximizing light olefins and aromatics as high value base chemicals via single step catalytic conversion of plastic waste

2022 ◽  
Vol 428 ◽  
pp. 132087
Author(s):  
Andreas Eschenbacher ◽  
Robin John Varghese ◽  
Mehrdad Seifali Abbas-Abadi ◽  
Kevin M. Van Geem
Keyword(s):  
Catalytic Conversion ◽  
Single Step ◽  
Plastic Waste ◽  
Light Olefins

scholarly journals Single-step catalytic conversion of furfural to 2-pentanol over bimetallic Co–Cu catalysts

2019 ◽  
Vol 4 (2) ◽  
pp. 261-267 ◽  
Author(s):  
Bhogeswararao Seemala ◽  
Rajeev Kumar ◽  
Charles M. Cai ◽  
Charles E. Wyman ◽  
Phillip Christopher
Keyword(s):  
Catalytic Conversion ◽  
Single Step ◽  
Cu Catalysts

Catalytic conversion of furfural to 2-pentanol over Co–Cu/Al2O3 catalysts.

Single-step preparation of zinco- and aluminosilicate delaminated MWW layers for catalytic conversion of glucose

2021 ◽  
Author(s):  
Hyung-Ki Min ◽  
Sungjoon Kweon ◽  
Sohun Oh ◽  
Hyejin An ◽  
Yun Hye Cho ◽  
...  
Keyword(s):  
Molecular Sieves ◽  
Molecular Diffusion ◽  
Catalytic Conversion ◽  
Single Step ◽  
Two Dimensional ◽  
Active Centers ◽  
Highly Dispersed

Two-dimensional (2D) molecular sieves with highly dispersed active centers have great potential as catalysts for the transformation of bulky biomass derivatives owing to the ease of molecular diffusion and the...

scholarly journals Catechol 1,2-Dioxygenase From Paracoccus sp. MKU1—A Greener and Cleaner Bio-Machinery for cis, cis-Muconic Acid Production by Recombinant E. coli

2021 ◽  
Vol 9 ◽  
Author(s):  
Manikka Kubendran Aravind ◽  
Perumal Varalakshmi ◽  
Swamidoss Abraham John ◽  
Balasubramaniem Ashokkumar
Keyword(s):  
Low Cost ◽  
3D Structure ◽  
Single Step ◽  
Potential Candidate ◽  
Muconic Acid ◽  
Whole Cells ◽  
E Coli ◽  
C Terminus ◽  
Catechol 1,2 Dioxygenase ◽  
Α Helix

Cis, cis-muconic acid (ccMA) is known for its industrial importance as a precursor for the synthesis of several biopolymers. Catechol 1,2-dioxygenase (C12O) is involved in aromatic compounds catabolism and ccMA synthesis in a greener and cleaner way. This is the first study on C12O gene from a metabolically versatile Paracoccus sp. MKU1, which was cloned and expressed in E. coli to produce ccMA from catechol. From the E. coli transformant, recombinant C12O enzyme was purified and found to be a homotrimer with a subunit size of 38.6 kDa. The apparent Km and Vmax for C12O was 12.89 µM and 310.1 U.mg−1, respectively, evidencing high affinity to catechol than previously reported C12Os. The predicted 3D-structure of C12O from MKU1 consisted of five α-helices in N-terminus, one α-helix in C-terminus, and nine β-sheets in C-terminus. Moreover, a unique α-helix signature ‘EESIHAN’ was identified in C-terminus between 271 and 277 amino acids, however the molecular insight of conservative α-helix remains obscure. Further, fed-batch culture was employed using recombinant E. coli expressing C12O gene from Paracoccus sp. MKU1 to produce ccMA by whole-cells catalyzed bioconversion of catechol. With the successive supply of 120 mM catechol, the transformant produced 91.4 mM (12.99 g/L) of ccMA in 6 h with the purity of 95.7%. This single step conversion of catechol to ccMA using whole-cells reactions of recombinants did not generate any by-products in the reaction mixtures. Thus, the recombinant E. coli expressing high activity C12O from Paracoccus sp. MKU1 holds promise as a potential candidate for yielding high concentrations of ccMA at faster rates in low cost settings.

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