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Improving Biomass Pyrolysis Economics by Integrating Vapor and Liquid Phase Upgrading

6 hours 5 min ago
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC02947K, PerspectiveKristiina Iisa, David J. Robichaud, Mike Watson, Jeroen ten Dam, Abhijit Dutta, Calvin Mukarakate, Seonah Kim, Mark Nimlos, Robert Baldwin
Partial deoxygenation of bio-oil by catalytic fast pyrolysis with subsequent coupling and hydrotreating can lead to improved economics and will aid commercial deployment of pyrolytic conversion of biomass technologies. Biomass...
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Mechanistic Studies of Base-Catalyzed Lignin Depolymerization in Dimethyl Carbonate

6 hours 5 min ago
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC03110F, PaperSaumya Dabral, Julien Engel, Jakob Mottweiler, Stephanie Spoehrle, Ciaran W. Lahive, Carsten Bolm
The depleting fossil reservoirs have stimulated global research initiatives on the renewable feedstocks of lignin as sustainable alternatives for petroleum-derived aromatics. Base-catalysed depolymerisation (BCD) is regarded as an economical and...
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Superbase ionic liquids for effective cellulose processing from dissolution to carbonisation

Thu, 11/23/2017 - 08:25
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC02671D, PaperOlga Kuzmina, Jyoti Bhardwaj, Sheril Rizal Vincent, Nandula Dasitha Wanasekara, Livia Mariadaria Kalossaka, Jeraime Griffith, Antje Potthast, Sameer Rahatekar, Stephen James Eichhorn, Tom Welton
A range of superbase derived ionic liquids (SILs) was synthesised and characterised. Their ability to dissolve cellulose and the characteristics of the produced fibres were correlated to their specific structural...
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Artificial synthetic pathway for acetoin, 2,3-butanediol, and 2-butanol production from ethanol using cell free multi-enzyme catalysis

Thu, 11/23/2017 - 06:21
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC02898A, PaperLiaoyuan Zhang, Raushan K Singh, Sivakumar D, Zewang Guo, Jiahuan Li, Fanbin Chen, Yuanzhi He, Xiong Guan, Yun Chan Kang, Jung-Kul Lee
Upgrading ethanol to higher order alcohols is desired but difficult by using current biotechnological methods. In this study, we designed a completely artificial reaction pathway for upgrading ethanol to acetoin,...
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Heterogeneous hydroformylation of long-chain alkenes in IL-in-oil Pickering emulsion

Wed, 11/22/2017 - 21:06
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC02574B, PaperLin Tao, Mingmei Zhong, Jian Chen, Sanjeevi Jayakumar, Lina Liu, He Li, Qihua Yang
The efficient heterogeneous catalytic system for hydroformylation of long-chain alkenes is highly desirable in both academy and industry. In this work, an IL-in-oil Pickering emulsion system was employed for heterogeneous...
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Highly efficient synthesis of [small beta]-nitrate ester carboxamides through the ring-opening of 2-oxazolines

Wed, 11/22/2017 - 21:06
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC02682J, CommunicationKai Qiao, Xin Yuan, Li Wan, Mingwei Zheng, Dong Zhang, Bingbing Fan, Zhechen Di, Zheng Fang, Kai Guo
A novel method for the synthesis of [small beta]-nitrate ester carboxamides using non-corrosive TBN as the nitro source and easily available oxygen as the oxidant has been developed. Variously substituted 2-oxazolines...
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Template-free Synthesis of Interconnected Carbon Nanosheets via Cross-linking Coupled with Annealing for High-efficiency Triiodide Reduction

Tue, 11/21/2017 - 05:19
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC02701J, PaperMingyu Li, Chang YU, Chao Hu, Changtai ZHAO, Mengdi Zhang, Yiwang Ding, Xiuna Wang, Jieshan Qiu
Counter electrodes (CEs) play critical roles in reduction and regeneration of triiodide/iodide redox couple in dye-sensitized solar cells (DSSCs). Compared with commercial Pt, cost-efficient CEs with excellent electrocatalytic activity and...
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Sustainable succinylation of cellulose in a CO2-based switchable solvent and subsequent Passerini 3-CR and Ugi 4-CR modification

Mon, 11/20/2017 - 05:42
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC02577G, Paperzafer soyler, Kelechukwu Onwukamike, Stephane Grelier, Etienne Grau, Henri Cramail, Michael A. R. Meier
A rapid and effective dissolution and activation of cellulose was demonstrated by a reversible reaction of CO2 with the hydroxyl groups of the cellulose backbone in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene...
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Natural surfactants towards a more sustainable fluorine chemistry

Mon, 11/20/2017 - 05:42
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC03081A, PerspectiveValentina Dichiarante, Roberto Milani, Pierangelo Metrangolo
Fluorinated materials play an essential role in modern industry and technology, and their importance is expected to grow even more in the next future. Unfortunately, their practical application often requires...
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From recovered metal waste to high-performance palladium catalysts

Mon, 11/20/2017 - 05:42
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC02678A, PaperKhairil Anuar Jantan, Chuek Yee Kwok, Kuang Wen Chan, Luciano Marchio, Andrew J P White, Paola Deplano, Angela Serpe, James Wilton-Ely
The catalytic activity of a series of neutral and cationic, homo- and heteroleptic, mono- and bimetallic palladium(II) compounds based on dithiocarbamate and dithiooxamide S,S-donor ligands is described. High activity was...
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An Approach to C-N Activation: Coupling of Arenesulfonyl Hydrazides and Arenesulfonyl Chlorides with tert-Amines via a Metal-, Oxidant- and Halogen-free Anodic Oxidation

Fri, 11/17/2017 - 14:24
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC03141F, PaperMehdi Sheykhan, Sonia Khani, Masoumeh Abbasnia, Sina Shaabanzadeh, Meraj Joafshan
tert-Amines were harnessed to meet arenesulfonyl hydrazides and arenesulfonyl chlorides via a metal-, oxidant- and halogen free electrochemical oxidative coupling in an undivided cell at rt. This environmentally benign approach...
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Derivatisation agents selection guide

Fri, 11/17/2017 - 07:08
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC03108D, PaperMarek Tobiszewski, Jacek Namiesnik, Francisco Pena-Pereira
The study reported herein is aimed at greenness assessment of 267 derivatisation agents that are frequently applied in analytical chemistry and related disciplines. Multicriteria decision analysis allowed obtaining three rankings...
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Versatile soy protein films and hydrogels by the incorporation of [small beta]-chitin from squid pens (Loligo sp.)

Fri, 11/17/2017 - 05:04
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC02982A, PaperTania Garrido Diaz, Alaitz Etxabide, Koro de la Caba, Pedro Guerrero
This work is focused on the preparation and characterization of [small beta]-chitin reinforced soy protein films, employing compression moulding as processing method. [small beta]-chitin was extracted from squid pens (Loligo sp.) by...
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An Efficient Palladium Catalyzed Mizoroki-Heck Cross-Coupling in Water

Wed, 11/15/2017 - 22:26
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC02869E, PaperSanjay Jadhav, C. V. Rode
The homogeneous Pd-catalysed Mizoroki-Heck coupling reaction has been successfully conducted in water in the absence of any additives under aerobic condition. The various key reaction parameters that affect the yield...
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Base-mediated tandem sulfonylation and oximation of alkenes in water

Wed, 11/15/2017 - 20:23
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC03051G, CommunicationBin Wang, Lin Tang, Liyan Liu, Yanan Li, Yang Yu, Zhiyong Wang
A base-mediated bifunctionalization of alkenes for the synthesis of [small alpha]-sulfonylethanone oximes was developed in water under metal-free condition. This reaction features a wide substrate scope and facile starting materials to...
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Mechanism for the selective epimerization of the glucose mannose pair by Mo-based compounds: towards catalyst optimization

Wed, 11/15/2017 - 20:23
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC02692G, PaperMarcos Rellan-Pineiro, Miquel Garcia-Rates, Nuria Lopez
The selective C2 epimerization of the glucose/mannose pair on a set of Mo-based catalysts was studied by means of Density Functional Theory. The process, known as the Bilik reaction, encompasses...
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Lignin depolymerization to monophenolic compounds in a flow-through system

Wed, 11/15/2017 - 06:35
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC02731A, CommunicationIvan kumaniaev, Elena Subbotina, Jonas Savmarker, Mats Larhed, Maxim Vadimovich Galkin, Joseph Samec
A reductive lignocellulose fractionation in a flow-through system in which pulping and transfer hydrogenolysis steps were separated in time and space has been developed. Without the hydrogenolysis step or addition...
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Copper-catalyzed aerobic benzylic sp3 C-H oxidation mediated synthesis of 2,4,5-trisubstituted imidazoles via a domino multicomponent reaction

Tue, 11/14/2017 - 04:13
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC02484C, PaperJaneeka Jayram, Vineet Jeena
An efficient and practical aerobic benzylic sp3 C-H oxidation as a key step towards the domino multi-component synthesis of 2,4,5-trisubstituted imidazoles has been reported. This green methodology employs an inexpensive...
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Esterification and hydrolysis of cellulose using oxalic acid dihydrate in a solvent-free reaction suitable for preparation of surface-functionalised cellulose nanocrystals with high yield

Mon, 11/13/2017 - 12:47

Green Chem., 2017, Advance Article
DOI: 10.1039/C7GC02489D, Communication Open Access &nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.D. Li, J. Henschen, M. Ek
A quick and simple process to prepare surface-functionalised cellulose nanocrystals.
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Transition-metal-free and organic solvent-free conversion of N-substituted 2-aminobiaryls into corresponding carbazoles via intramolecular oxidative radical cyclization induced by peroxodisulfate

Mon, 11/13/2017 - 07:35
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC03130K, PaperPalani Natarajan, Pri Ya, Deachen Chuskit
An atom-economical and environmentally benign approach for the synthesis of N-substituted carbazoles from analogous 2-aminobiaryls using peroxodisulfate in water is reported. The reactions proceeded through an intramolecular oxidative radical cyclization...
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