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1.212 Aktuelle Fachpublikationen zum Thema Chemie

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New completely renewable biofuels: Formulations and engine tests on an unmodified up-to-date diesel engine

20.06.2018 | Damian Brock; Alexander Koder; Hans-Peter Rabl; Didier Touraud; Werner Kunz, Green Chemistry, 2018

New completely green biofuels with rapeseed oil as main component were formulated. They not only fulfil the principles of green chemistry and thus do not contain any environmentally harmful additives, but also match the currently valid standards for biodiesel regarding their physicochemical ...

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The synergistic effect of self-assembly and visible-light induced the oxidative C–H acylation of N-heterocyclic aromatic compounds with aldehydes

06.06.2018 | Lingling Zhang; Guoting Zhang; Yongli Li; Shengchun Wang; Aiwen Lei, Chemical Communication, 2018

Constructing carbon–carbon bonds through oxidative cross-coupling between two hydrocarbon compounds is regarded as a foundational issue in green chemistry. High atom-economy and mild conditions are long term pursued goals in this field. Herein, we developed a visible-light mediated direct ...

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Conservative evolution and industrial metabolism in Green Chemistry

01.06.2018 | Gábor Náray-Szabó; László T. Mika, Green Chemistry, 2018

To date, chemistry has provided more than a hundred million new compounds, most of which are non-natural species that have never existed before and are a source of an enormous amount of pollution. With the increased amount of these “man-made” chemicals being synthesised and environmental concerns ...

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Conservative evolution and industrial metabolism in Green Chemistry

01.06.2018 | Gábor Náray-Szabó; László T. Mika, Green Chemistry, 2018

To date, chemistry has provided more than a hundred million new compounds, most of which are non-natural species that have never existed before and are a source of an enormous amount of pollution. With the increased amount of these “man-made” chemicals being synthesised and environmental concerns ...

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Unconventional media and technologies for starch etherification and esterification

28.05.2018 | Alexandre Gilet; Claude Quettier; Vincent Wiatz; Hervé Bricout; Michel Ferreira; Cyril Rousseau; Eric Monflier; ..., Green Chemistry, 2018

Among the most widespread starch derivatives, etherified and esterified starches play an important role. These derivatives are generally prepared by using thermal energy and conventional solvents. This review summarizes the recent advancements in the etherification and esterification of starch in ...

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Cellulose-dissolving protic ionic liquids as low cost catalysts for direct transesterification reactions of cellulose

28.05.2018 | Hideki Hanabusa; Ekaterina I. Izgorodina; Shiori Suzuki; Yuko Takeoka; Masahiro Rikukawa; Masahiro Yoshizawa-Fujita, Green Chemistry, 2018

Cellulose acetate (CA) is a resin derived from biomass. In addition to its various superior properties, CA is preferable to existing petroleum-derived resins from the viewpoint of green chemistry. Therefore, the acetylation of cellulose is one of the most important subjects in cellulose research. ...

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Molecules, Vol. 23, Pages 1292: Expectation-Maximization Model for Substitution of Missing Values Characterizing Greenness of Organic Solvents

28.05.2018 | Łuczyńska, Gabriela ; Pena-Pereira, Francisco ; Tobiszewski, Marek ; Namieśnik, Jacek, Molecules, 2018

Molecules, Vol. 23, Pages 1292: Expectation-Maximization Model for Substitution of Missing Values Characterizing Greenness of Organic Solvents Molecules doi: 10.3390/molecules23061292 Authors: Gabriela Łuczyńska Francisco Pena-Pereira Marek Tobiszewski Jacek Namieśnik Organic ...

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Obituary: Kenneth R. Seddon: 1950–2018

27.05.2018 | John Holbrey; Tom Welton, Green Chemistry, 2018

Prof. Ken Seddon died on 21 Jan 2018 and the green chemistry community has lost one truly original character. Ken was in many ways a larger than life figure and the image he cultivated was one designed to elicit a reaction. Like the ionic liquids he devoted much of his career to, this often res

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Catalytic cascade conversion of furfural to 1,4-pentanediol in a single reactor

27.05.2018 | Fei Liu; Qiaoyun Liu; Jinming Xu; Lei Li; Yi-Tao Cui; Rui Lang; Lin Li; Yang Su; Shu Miao; Hui Sun; Botao Qiao; Aiqi ..., Green Chemistry, 2018

The synthesis of bio-based linear diols is the subject of many research studies. However, one of the main obstacles in industrial development is the difficulty in controlling product selectivity. Here, we report the catalytic conversion of furfural to 1,4-pentanediol (PD) in the presence of Ru ...

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PET-RAFT polymerisation: towards green and precision polymer manufacturing

26.05.2018 | Jamie Phommalysack-Lovan; Yingying Chu; Cyrille Boyer; Jiangtao Xu, Chemical Communication, 2018

The necessity of sustainable development in the chemical industry has continuously drawn attention to find safe, environmentally friendly and atom-economic chemical processes, which is defined in the 12 principles of green chemistry. Merging photoredox catalysis and reversible ...

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