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1. Biomass chemical looping gasification for syngas production using modified hematite as oxygen carriers

Author:
Cong Jiang; Xiaoyu Jin; Tingting Xu; Bo Xiao; Zhiquan Hu; Xun Wang
Source:
Journal of environmental sciences (China) 2023 v.125 pp. 171-184
ISSN:
1001-0742
Subject:
feedstocks,   etc   ; biomass; calcium oxide; clean energy; gasification; hematite; oxygen; steam; synthesis gas; temperature; China;     Show all 11 Subjects
Abstract:
... Syngas is a clean energy carrier and a major industrial feedstock. In this paper, syngas was produced via biomass chemical looping gasification (CLG) process. Hematite, the most common Fe-based oxygen carrier (OC), was modified with different metal oxides (CeO₂, CaO and MgO) by the impregnation method. The hematite modified by CeO₂, CaO and MgO was namely as CeO₂-hematite (CeO₂-H), CaO-hematite (C ...
DOI:
10.1016/j.jes.2021.11.028

2. Construction of Fused Tetrahydroquinolines by Catalytic Hydride-Transfer-Initiated Tandem Functionalization of Quinolines

Author:
Rongqing Guan; He Zhao; Min Zhang
Source:
Organic letters 2022 v.24 no.16 pp. 3048-3052
ISSN:
1523-7052
Subject:
feedstocks,   etc   ; indoles; quinoline;     Show all 3 Subjects
Abstract:
... Herein, we present a new annulation reaction of quinolinium salts with indoles and paraformaldehyde, which enables syn-diastereoselective construction of a vast range of fused tetrahydroquinolines via ruthenium-catalyzed hydride-transfer-initiated tandem functionalization of the quinoline skeleton. The developed transformation proceeds with mild reaction conditions, good substrate and functional g ...
DOI:
10.1021/acs.orglett.2c01001

3. Catalytic Hydrodifluoroalkylation of Unactivated Olefins

Author:
Wen-Jun Yue; Craig S. Day; Adrian J. Brenes Rucinski; Ruben Martin
Source:
Organic letters 2022 v.24 no.28 pp. 5109-5114
ISSN:
1523-7052
Subject:
feedstocks,   etc   ; drugs; olefin;     Show all 3 Subjects
Abstract:
... Herein, we report a modular catalytic technique that streamlines the preparation of gem-difluoroalkanes from unactivated sp³ precursors. The method is characterized by its simplicity, generality, and site selectivity, including the functionalization of advanced intermediates and olefin feedstocks. Our approach is enabled by a cooperative interplay of halogen- and hydrogen-atom transfer, thus offer ...
DOI:
10.1021/acs.orglett.2c01941

4. A critical review on production, modification and utilization of biochar

Author:
Yanqi Xie; Liang Wang; Hailong Li; Lena Johansson Westholm; Lara Carvalho; Eva Thorin; Zhixin Yu; Xinhai Yu; Øyvind Skreiberg
Source:
Journal of analytical and applied pyrolysis 2022 v.161 pp. 105405
ISSN:
0165-2370
Subject:
feedstocks,   etc   ; biochar; biomass; pyrolysis;     Show all 4 Subjects
Abstract:
... There has been an increased interest in the production of sustainable biochar in the past years, as biochar shows versatile physicochemical properties and, can have a wide applicability in diverse fields. Comprehensive studies have been made to characterize biochar produced from various biomass materials, using different production technologies and under different process conditions. However, rese ...
DOI:
10.1016/j.jaap.2021.105405

5. Generation of new carbon–carbon and carbon–heteroatom bonds mediated by agro-waste extracts: a review

Author:
Maura L. Bruckchem Peixoto; Calebe Hebrom Livistom Silva; Marcelo Godoi
Source:
Environmental chemistry letters 2022 v.20 no.1 pp. 841-873
ISSN:
1610-3653
Subject:
feedstocks,   etc   ; biodegradability; organic chemistry;     Show all 3 Subjects
Abstract:
... Agro-waste extracts are considered green solvents since they are easy to handle, readily accessible from natural waste feedstock, biodegradable and recyclable. Therefore, the employment of these extracts in reaction media has emerged as the most useful and eco-friendly alternative in modern organic chemistry. Here, we review recent developments for the generation of new carbon–carbon and carbon–he ...
DOI:
10.1007/s10311-021-01343-3

6. The beauty of biocatalysis: sustainable synthesis of ingredients in cosmetics

Author:
Rachel S. Heath; Rebecca E. Ruscoe; Nicholas J. Turner
Source:
Natural product reports 2022 v.39 no.2 pp. 335-388
ISSN:
1460-4752
Subject:
feedstocks,   etc   ; biocatalysis; cosmetics; markets;     Show all 4 Subjects
Abstract:
... The market for cosmetics is consumer driven and the desire for green, sustainable and natural ingredients is increasing. The use of isolated enzymes and whole-cell organisms to synthesise these products is congruent with these values, especially when combined with the use of renewable, recyclable or waste feedstocks. The literature of biocatalysis for the synthesis of ingredients in cosmetics in t ...
DOI:
10.1039/d1np00027f

7. DBU-promoted synthesis of novel heterocyclic [4.3.3] propellanes from α‑cyanoketones and cyclic α-diketones

Author:
Maruti B. Yadav; Suresh R. Bhosle; Yeon Tae Jeong
Source:
Tetrahedron letters 2022 v.98 pp. 153815
ISSN:
0040-4039
Subject:
feedstocks,   etc   ; heterocyclic compounds; ligands;     Show all 3 Subjects
Abstract:
... An effective base-catalyzed Knoevenagel, Michael and intramolecular/Paal-Knorr cyclization strategy for the construction of heterocyclic [4.3.3] tetrahydro epoxyetheno benzo-furan propellanes (TEBFs) from cyclic α-diketones and α‑cyanoketones is reported through single-step reaction. The reaction proceeds under mild reaction conditions and shows excellent chemo and distereoselectivity in the absen ...
DOI:
10.1016/j.tetlet.2022.153815

8. Force in numbers: high-throughput screening approaches to unlock microbial transport

Author:
Liam Richard Jenkins Sánchez; Silke Claus; Liv Teresa Muth; José Manuel Salvador López; Inge Van Bogaert
Source:
Current opinion in biotechnology 2022 v.74 pp. 204-210
ISSN:
0958-1669
Subject:
feedstocks,   etc   ; biosensors; biotechnology; toxicity;     Show all 4 Subjects
Abstract:
... Biological membranes are inherently complex, making transport processes in microbial cell factories a significant bottleneck. Lack of knowledge on transport proteins’ characteristics and the need for advanced technical equipment often hamper transporter identification and optimization. For these reasons, moving away from individual characterization and towards high-throughput mining, engineering, ...
DOI:
10.1016/j.copbio.2021.11.012

9. Cold spray deposition of metallic coatings on polymers: a review

Author:
Roberta Della Gatta; Alessia Serena Perna; Antonio Viscusi; Germana Pasquino; Antonello Astarita
Source:
Journal of materials science 2022 v.57 no.1 pp. 27-57
ISSN:
0022-2461
Subject:
feedstocks,   etc   ; cold; polymers; spray deposition;     Show all 4 Subjects
Abstract:
... Cold spray deposition, which can be framed in the wider family of additive manufacturing, is a manufacturing technique that is able to produce coatings on diverse types of substrates through the deposition of feedstock powder. As a low-temperature process, cold spray represents a potential solution for the metallization of temperature-sensitive materials, i.e. polymers and polymer matrix composite ...
DOI:
10.1007/s10853-021-06561-2

10. Educating the managers of the bioeconomy

Author:
Rosaria Ciriminna; Lorenzo Albanese; Francesco Meneguzzo; Mario Pagliaro
Source:
Journal of cleaner production 2022 v.366 pp. 132851
ISSN:
0959-6526
Subject:
feedstocks,   etc   ; biobased products; bioeconomics; landscapes;     Show all 4 Subjects
Abstract:
... The educational gap for which science is not taught to managers, and management is not taught to scientists, is a significant obstacle to a company's success also in the bioeconomy field. The characteristic aspects of innovation in the bioeconomy contribute to explaining why it is difficult to find managers for bioeconomy companies. In addition, many different sectors in the bioeconomy pose differ ...
DOI:
10.1016/j.jclepro.2022.132851

11. Itaconic-Acid-Based Sustainable Poly(ester amide) Resin for Stereolithography

Author:
Veronica Vetri Buratti; Alberto Sanz de Leon; Mirko Maturi; Letizia Sambri; Sergio Ignacio Molina; Mauro Comes Franchini
Source:
Macromolecules 2022 v.55 no.8 pp. 3087-3095
ISSN:
1520-5835
Subject:
feedstocks,   etc   ; biocompatibility; citrates; fabrics; petroleum;     Show all 5 Subjects
Abstract:
... Material science is recognized as a frontrunner in achieving a sustainable future, owing to its primary reliance upon petroleum-based chemical raw materials. Several efforts are made to implement common renewable feedstocks as an alternative to common fossil resources. For this purpose, additive manufacturing (AM) represents promising and effective know-how for the replacement of high energy- and ...
DOI:
10.1021/acs.macromol.1c02525

12. Nickel-Catalyzed Cascade Reaction of 2-Vinylanilines with gem-Dichloroalkenes

Author:
Jin Lin; Chaoyi Wu; Xu Tian
Source:
Organic letters 2022 v.24 no.27 pp. 4855-4859
ISSN:
1523-7052
Subject:
feedstocks,   etc   ; Ursidae; group process; quinolines;     Show all 4 Subjects
Abstract:
... An efficient nickel-catalyzed cascade reaction of 2-vinylanilines with gem-dichloroalkenes has been developed to deliver diversely substituted quinolines in good to high yields. This protocol enables effective access to quinolines bearing various functional groups in the cascade process from readily available feedstock chemicals. Mechanistic studies suggest that two plausible pathways are involved ...
DOI:
10.1021/acs.orglett.2c01492

13. Catalytic Asymmetric Reductive Azaarylation of Olefins via Enantioselective Radical Coupling

Author:
Yajuan Li; Cuijie Han; Yanyan Wang; Xin Huang; Xiaowei Zhao; Baokun Qiao; Zhiyong Jiang
Source:
Journal of the American Chemical Society 2022 v.144 no.17 pp. 7805-7814
ISSN:
1520-5126
Subject:
feedstocks,   etc   ; Cinchona; catalysts; enantioselectivity; photocatalysis; regioselectivity;     Show all 6 Subjects
Abstract:
... Visible-light-driven photocatalytic reductive azaarylation has been widely used to construct the important imine-containing azaarene derivatives. In addition to the direct use of various commercially available cyanoazaarenes as feedstocks, the synthetic advantages include precise regioselectivity, high efficiency, mild reaction conditions, and good functional group tolerance. However, although man ...
DOI:
10.1021/jacs.2c01458

14. Cellulose nanosphere: Preparation and applications of the novel nanocellulose

Author:
Weiguo Tian; Xuexin Gao; Jinming Zhang; Jian Yu; Jun Zhang
Source:
Carbohydrate polymers 2022 v.277 pp. 118863
ISSN:
0144-8617
Subject:
feedstocks,   etc   ; cellulose; mercerization; nanocrystals; nanofibers; nanospheres;     Show all 6 Subjects
Abstract:
... Over the past few years, cellulose nanosphere (CNS) has gained growing attention and rapid development. As a new type of nanocellulose materials, CNS can be prepared from native cellulose by using methods which have been adopted extensively to prepare the well-known nanocelluloses, i.e., cellulose nanofiber and cellulose nanocrystal. The particular interest is that the regenerated cellulose and me ...
DOI:
10.1016/j.carbpol.2021.118863

15. Catalytic pyrolysis of lignocellulosic biomass for bio-oil production: A review

Author:
Yi Wang; Abdolhamid Akbarzadeh; Li Chong; Jinyu Du; Nadeem Tahir; Mukesh Kumar Awasthi
Source:
Chemosphere 2022 v.297 pp. 134181
ISSN:
0045-6535
Subject:
feedstocks,   etc   ; biofuels; biomass; commercialization; lignocellulose; pyrolysis;     Show all 6 Subjects
Abstract:
... Catalytic pyrolysis has been widely explored for bio-oil production from lignocellulosic biomass owing to its high feasibility and large-scale production potential. The aim of this review was to summarize recent findings on bio-oil production through catalytic pyrolysis using lignocellulosic biomass as feedstock. Lignocellulosic biomass, structural components and fundamentals of biomass catalytic ...
DOI:
10.1016/j.chemosphere.2022.134181

16. Construction of Fluorinated Amino Acid Derivatives via Cobalt-Catalyzed Oxidative Difunctionalization of Cyclic Ethers

Author:
Peng Duan; He Zhao; Jian Yang; Liang Cao; Huanfeng Jiang; Min Zhang
Source:
Organic letters 2022 v.24 no.2 pp. 608-612
ISSN:
1523-7052
Subject:
feedstocks,   etc   ; amino acids; catalysts; cost effectiveness;     Show all 4 Subjects
Abstract:
... Via difunctionalization of the α- and β-sites of cyclic ethers, we herein demonstrate a new synthetic method for the efficient construction of novel fluorinated γ-amino acid esters by employing a CoBr₂/m-CPBA catalyst system. Several cyclic ethers were transformed in combination with a vast range of amines and ethyl trifluoropyruvate into the desired products under mild conditions, making this met ...
DOI:
10.1021/acs.orglett.1c04048

17. Electrocatalytic hydrogenation of lignin monomer to methoxy-cyclohexanes with high faradaic efficiency

Author:
Miao Wang; Tao Peng; Chenxin Yang; Baiyao Liang; Henan Chen; Mohan Kumar; Yun Zhang; Wei Zhao
Source:
Green chemistry 2022 v.24 no.1 pp. 142-146
ISSN:
1463-9270
Subject:
feedstocks,   etc   ; green chemistry; guaiacol; hydrogenation; lignin;     Show all 5 Subjects
Abstract:
... Developing efficient renewable electrocatalytic processes in chemical manufacturing is of commercial interest, especially from biomass-derived feedstock. Selective electrocatalytic hydrogenation (ECH) of biomass-derived lignin monomers to high-value oxygen-functional compounds is promising towards achieving this goal. However, ECH has to date lacked the satisfied selectivity to upgrade lignin mono ...
DOI:
10.1039/d1gc03523a

18. Towards one sample per second for mass spectrometric screening of engineered microbial strains

Author:
Lihao Fu; Erpeng Guo; Jianzhi Zhang; Keyi Li; Yongcan Chen; Tong Si
Source:
Current opinion in biotechnology 2022 v.76 pp. 102725
ISSN:
0958-1669
Subject:
feedstocks,   etc   ; biotechnology; instrumentation; mass spectrometry; robots;     Show all 5 Subjects
Abstract:
... Microbial cell factories convert renewable feedstocks into desirable chemicals and materials. Due to the lack of predictive modeling, high-throughput screening remains essential for microbial strain engineering. Mass spectrometry (MS) is a label-free modality with superior sensitivity and chemical specificity. Critical advances in improving the throughput of MS assays on complex microbial samples ...
DOI:
10.1016/j.copbio.2022.102725

19. Continuum Modeling of Porous Electrodes for Electrochemical Synthesis

Author:
Justin C. Bui; Eric W. Lees; Lalit M. Pant; Iryna V. Zenyuk; Alexis T. Bell; Adam Z. Weber
Source:
Chemical reviews 2022 v.122 no.12 pp. 11022-11084
ISSN:
1520-6890
Subject:
feedstocks,   etc   ; electrodes; electrosynthesis; physics; value added;     Show all 5 Subjects
Abstract:
... Electrochemical synthesis possesses substantial promise to utilize renewable energy sources to power the conversion of abundant feedstocks to value-added commodity chemicals and fuels. Of the potential system architectures for these processes, only systems employing 3-D structured porous electrodes have the capacity to achieve the high rates of conversion necessary for industrial scale. However, t ...
DOI:
10.1021/acs.chemrev.1c00901

20. β-Bromoenol phosphate as a new precursor for the modular regioselective synthesis of substituted furans

Author:
Rushil Fernandes; Krishna Mhaske; Rishikesh Narayan
Source:
Tetrahedron 2022 v.103 pp. 132553
ISSN:
0040-4020
Subject:
feedstocks,   etc   ; furans; phosphates; regioselectivity; sodium hydride;     Show all 5 Subjects
Abstract:
... Owing to its importance in various realms of chemistry, furan occupies a position of eminence among heterocycles. Despite the availability of many methodologies for the synthesis of variably substituted furans, a modular convenient synthesis of 2,4-disubstituted furans remains challenging. The present work attempts to bridge that gap through a novel annulation-based approach using feedstock chemic ...
DOI:
10.1016/j.tet.2021.132553