Results 41 to 50 of about 618 (108)

Low molecular weight products from the aqueous alkaline degradation of cellulose [PDF]

open access: yes, 1977
Low molecular weight products from the degradation of pure cellulose in 0.6 to 1.3 N alkali at 300/sup 0/C were identified by gas chromatography/mass spectrometry (GC/MS).
Miller, R. K.   +3 more
core  

The facile dearomatization of nitroaromatic compounds using lithium enolates of unsaturated ketones in conjugate additions and (4+2) formal cycloadditions

open access: yes, 2019
International audienceDearomatization of conventional nitroarenes by lithiated enolates derived from methyl vinyl ketones easily takes place, following a formal (4+2) cycloaddition process.
Sebban, Muriel   +7 more
core   +1 more source

Synthesis and rearrangement of alicyclic systems

open access: yes, 2017
This thesis is concerned with intramolecular rearrangements of epoxides of bicyclic systems: in the presence of acids, epoxides will cleave to generate electron deficient sites which can promote rearrangements involving intramolecular nucleophiles such ...
McHale, Philip J.
core   +1 more source

Pyrolysis of anilino nitriles and anilino acids [PDF]

open access: yes, 1955
The pyrolyses of anilino nitriles and anilino acids, derived from C4 - C7 alicyclic ketones have been carried out. The C5, C6, and C7 anilino nitriles, as well as both geometric isomers of the C6 anilino nitrile with a 2-methyl substituent (Calpha and ...
Bain, William C
core  

EFSA CEF Panel (EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids), 2014. Scientific Opinion on Flavouring Group Evaluation 9, Revision 5 (FGE.09Rev5): Secondary alicyclic saturated and unsaturated alcohols, ketones and esters containing secondary alicyclic alcohols from chemical group 8 and 30, and an ester of a phenol derivative from chemical group 25 [PDF]

open access: yes, 2014
The Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids of the European Food Safety Authority was requested to evaluate 21 flavouring substances in the Flavouring Group Evaluation 9, Revision 5, using the Procedure in Commission ...

core   +1 more source

Potential Use and Chemical Analysis of Some Natural Plant Extracts for Controlling Listeria spp. Growth In Vitro and in Food

open access: yes
Listeria are Gram-negative intracellular foodborne pathogens that can cause invasive infections with high mortality rates. In this work, the antibacterial activity of ten essential oils, infusion extracts, and decoction extracts of some medicinal plants ...
Gamal Enan   +5 more
core   +1 more source

New Methods for Palladium-catalyzed Decarboxylative Benzylation, Arylation and Dearomatization Reactions [PDF]

open access: yes, 2015
Development of novel synthetic methods for the efficient generation of new carbon-carbon bonds is a valuable endeavor in organic synthesis. In this regard, palladium-catalyzed decarboxylative cross-coupling has significant potential as a waste-free ...
Mendis, Ranasingha A. Shehani. N.
core  

Scientific Opinion on Flavouring Group Evaluation 9, Revision 6 (FGE.09Rev6): Secondary alicyclic saturated and unsaturated alcohols, ketones and esters containing secondary alicyclic alcohols from chemical group 8 and 30, and an ester of a phenol derivative from chemical group 25

open access: yes, 2015
The Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids of the European Food Safety Authority was requested to evaluate 22 flavouring substances in the Flavouring Group Evaluation 9, Revision 6, using the Procedure in Commission ...
EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF)
core   +1 more source

High-field NMR spectroscopy and FTICR mass spectrometry: powerful discovery tools for the molecular level characterization of marine dissolved organic matter

open access: yes, 2013
High-performance, non-target, high-resolution organic structural spectroscopy was applied to solid phase extracted marine dissolved organic matter (SPE-DOM) isolated from four different depths in the open South Atlantic Ocean off the Angola coast (3° E ...
Koch, B.P.   +12 more
core   +1 more source

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