Results 91 to 100 of about 39,482 (297)

Novel carbocationic rearrangements of 1-styrylpropargyl alcohols

open access: yesBeilstein Journal of Organic Chemistry, 2015
The dehydration and subsequent cyclization reactions of 1-styrylpropargyl alcohols was examined. In the course of these studies, numerous scaffolds were synthesized, including a furan, a cyclopentenone, an acyclic enone and even a naphthalenone.
Christine Basmadjian   +2 more
doaj   +1 more source

Changes during the extrusion of semolina in mixture with sugars

open access: yesCzech Journal of Food Sciences, 2001
Wheat semolina and its mixtures with 5% glucose, fructose of sucrose were processed in a sigle screw extruder at the maximum temperature of 140°C and the processing time of 30 s.
A. Farouk Mansour   +3 more
doaj   +1 more source

Volatile Composition of Smoked and Non-Smoked Iranian Rice

open access: yesFoods, 2016
In this work, the volatile profiles of smoked and non-smoked Iranian rice were identified, and their relative abundance was calculated and compared. Headspace solid-phase microextraction together with gas chromatography-mass spectrometry (SPME-GC-MS ...
Leontina Lipan   +4 more
doaj   +1 more source

Safety and Contamination Information to Consumers regarding Control of Quality and Safety in Organic Production Chains [PDF]

open access: yes, 2005
This leaflet provides a practical overview for consumers of what is done to secure the safety and purity of 7 types of organically pro-duced foods, and what the consumer can do to support those ef-forts and preserve the food safety after purchase.
Brandt, Kirsten   +3 more
core  

Sustainable bioethanol production combining biorefinery principles using combined raw materials from wheat undersown with clover-grass [PDF]

open access: yes, 2008
To obtain the best possible net energy balance of the bioethanol production the biomass raw materials used need to be produced with limited use of non-renewable fossil fuels.
AB Bjerre   +20 more
core   +1 more source

Rapid pseudo five-component synthesis of intensively blue luminescent 2,5-di(hetero)arylfurans via a Sonogashira–Glaser cyclization sequence

open access: yesBeilstein Journal of Organic Chemistry, 2014
2,5-Di(hetero)arylfurans are readily accessible in a pseudo five-component reaction via a Sonogashira–Glaser coupling sequence followed by a superbase-mediated (KOH/DMSO) cyclization in a consecutive one-pot fashion. Besides the straightforward synthesis
Fabian Klukas   +3 more
doaj   +1 more source

Tunable Oleo-Furan Surfactants by Acylation of Renewable Furans

open access: yesACS Central Science, 2016
An important advance in fluid surface control was the amphiphilic surfactant composed of coupled molecular structures (i.e., hydrophilic and hydrophobic) to reduce surface tension between two distinct fluid phases. However, implementation of simple surfactants has been hindered by the broad range of applications in water containing alkaline earth ...
Dae Sung Park   +14 more
openaire   +3 more sources

Effects of compost and digestate on environment and plant production – results of two research projects [PDF]

open access: yes, 2008
A yearly amount of 9.3x106t compost and digestate derived from separately collected organic waste is produced in the 25 European Union member states. The improvement of soil properties is a major benefit of compost application.
Berner, Alfred   +4 more
core  

Radical Cascade Combining Cross‐Olefin Coupling with the Smiles‐Truce Rearrangement

open access: yesAngewandte Chemie International Edition, EarlyView.
We present a cobalt‐catalysed radical cascade that efficiently merges two alkene starting materials to form multiple bonds in a single step. The process begins with a cobalt‐catalysed hydrogen‐atom transfer‐to a styrene double bond, followed by a Giese addition.
Jingyang Qin   +3 more
wiley   +1 more source

Gold-Catalyzed Propargylic Substitution Followed by Cycloisomerization in Ionic Liquid: Environmentally Friendly Synthesis of Polysubstituted Furans from Propargylic Alcohols and 1,3-Dicarbonyl Compounds

open access: yesMolecules
Gold-catalyzed propargylic substitution of propargylic alcohols 1 with 1,3-dicarbonyl compounds 2 followed by cycloisomerization in ionic liquid enables the environmentally friendly synthesis of polysubstituted furans 3 in good-to-high yields.
Hitomi Chiaki   +2 more
doaj   +1 more source

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