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52.212 Aktuelle Fachpublikationen zum Thema temperature


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Acylation of indoles via photoredox catalysis: a route to 3-acylindoles

24.11.2015 | Lijun Gu; Cheng Jin; Jiyan Liu; Hongtao Zhang; Minglong Yuan; Ganpeng Li, Green Chemistry, 2015

A visible-light-induced synthesis of 3-acylindoles from simple indoles and α-oxo acids at room temperature has been discovered. The reaction tolerates a wide range of functional groups and gives a variety of valuable 3-acylindoles in moderate to high yields under mild conditions.


Hydroamination of Diphenylbutadiyne with Secondary N-Methyl-anilines Using the Dipotassium Tetrakis(2,6-diisopropylanilino)calciate Precatalyst

24.11.2015 | Matthias Westerhausen; Fadi M Younis; Sven Krieck; Helmar Görls, Dalton Transactions, 2015

The approved precatalyst [K2Ca{N(H)Dipp}4] was employed to study the hydroamination of diphenylbutadiyne with N-methyl-anilines in tetrahydrofuran at room temperature. The hydroamination occurs regioselectively within a few hours yielding (N-methyl)-(N-aryl)-1,4-diphenylbut-1-ene-3-yne-1-ylamine ...


Preparation and Crystal Structure of K2Ce(PO4)2: A New Complex Phosphate of Ce(IV) Having Structure With One-Dimensional Channels

24.11.2015 | Samatha Bevara; S N Achary; S J Patwe; Anil K Sinha; A. K. Tyagi, Dalton Transactions, 2015

In this manuscript we report crystal structure of a new complex binary phosphate K2Ce4+(PO4)2 in K2O-P2O5-CeO2 system prepared by solid state reaction at moderate temperature conditions. The prepared material was characterized by powder x-ray diffraction using lab source and synchrotron radiation ...


Stepwise pyrolysis of the kerogen from the Huadian oil shale, NE China: Algaenan-derived hydrocarbons and mid-chain ketones

22.11.2015 | Author(s): Zhirong Zhang, John K. Volkman, Xiaomin Xie, Lloyd R. Snowdon, Organic Geochemistry, 2015

Publication date: Available online 17 November 2015 Source:Organic Geochemistry Author(s): Zhirong Zhang, John K. Volkman, Xiaomin Xie, Lloyd R. Snowdon Kerogen from the organic rich Eocene Huadian oil shale in NE China was subjected to sequential stepwise pyrolysis at 50 °C ...


Synthesis of Nano Calcium Hydroxide in Aqueous Medium

21.11.2015 | Aniruddha Samanta, Dipak K. Chanda, Pradip Sekhar Das, Jiten Ghosh, Anoop Kumar Mukhopadhyay, Arjun Dey, Journal of the American Ceramic Society, 2015

The present work reports a simple, inexpensive method for synthesis of calcium hydroxide [Ca(OH)2] nanoparticles (CHNPs). The method involves chemical precipitation (CP) in aqueous medium at room temperature. Calcium nitrate dihydrate [Ca(NO3)2.2H2O] and sodium hydroxide were used as precursors. ...


Kinetic Modeling of Pt/C Catalyzed Aqueous Phase Glycerol Conversion with In Situ Formed Hydrogen

21.11.2015 | Xin Jin, Prem S. Thapa, Bala Subramaniam, Raghunath V. Chaudhari, AIChE Journal, 2015

Abstract Detailed kinetic modeling of Pt/C catalyzed conversion of glycerol to lactic acid, glycols and alcohols with in‐situ formed hydrogen is reported. Experimental concentration‐time profiles were obtained in a batch slurry reactor at different glycerol concentrations, nitrogen partial ...


Use of Microfiltration to Improve Quality and Shelf Life of Ultra‐High Temperature Milk

20.11.2015 | Shuwen Zhang, Lu Liu, Xiaoyang Pang, Jing Lu, Fanpi Kong, Jiaping Lv, Journal of Food Processing and Preservation, 2015

Abstract The main objectives of this research were to evaluate the efficacy of microfiltration in extending the shelf life and improving the quality of ultra‐high temperature (UHT) milk. Results showed that in high somatic cell counts (SCC) and low SCC raw milk, microfiltration resulted in an ...


Production of a Meat Seasoning Powder Enriched with γ‐Aminobutyric Acid (GABA) from Mature Coconut Water Using Pediococcus Pentosaceus HN8

20.11.2015 | Duangporn Kantachote, Tomorn Nunkaew, Anussara Ratanaburee, Nikkajit Klongdee, Journal of Food Processing and Preservation, 2015

Abstract The optimal conditions for producing 9.96 g/L GABA (γ‐aminobutyric acid) in mature coconut water by Pediococcus pentosaceus HN8 were 10% monosodium glutamate as an additive, an initial pH of 5.92 and 33C under static condition for 24 h. A seasoning meat (112 g/L culture broth), spicy ...


Determining the Functional Characteristics of Wheat and Corn Grains Depending on Storage Time and Temperature

20.11.2015 | Hakan Kibar, Journal of Food Processing and Preservation, 2015

Abstract The purpose of this study was to determine how storage time (0–90 days) and temperature (10, 12 and 14C) affect the functional properties of wheat and corn grains. Functional properties such as grain moisture content, grain geometry, dry matter, crude protein and fiber, thousand ...


Properties of Salted Shrimp Paste (Kapi) from Acetes Vulgaris as Affected by Postmortem Storage Prior to Salting

20.11.2015 | Jaksuma Pongsetkul, Soottawat Benjakul, Punnanee Sumpavapol, Kazufumi Osako, Nandhsha Faithong, Journal of Food Processing and Preservation, 2015

Abstract The impact of postmortem storage time of shrimp (Acetes vulgaris) on the quality of shrimp and the resulting Kapi, or salted shrimp paste, was investigated. When shrimp were stored at room temperature (28–30C) for up to 15 h, total volatile base, trimethylamine contents, ...


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