Results 61 to 70 of about 495,205 (264)

Synthesis of biscoumarin derivatives by the reaction of aldehydes and 4-hydroxycoumarin using ruthenium (III) chloride hydrate as a versatile homogeneous catalyst [PDF]

open access: yesJournal of the Serbian Chemical Society, 2012
The one-pot domino Knoevenagel-type condensation/Michael reaction of aromatic, heteroaromatic and aliphatic aldehydes with 4-hydroxycoumarin in aqueous media in the presence of ruthenium salt as homogeneous catalyst was investigated. It was found that
Tabatabaeian Khalil   +4 more
doaj   +1 more source

The quest for a plausible formation route of formyl cyanide in the interstellar medium: a state-of-the-art quantum-chemical and kinetic approach [PDF]

open access: yes, 2020
Interstellar complex organic molecules (iCOMs) are assumed to be mainly formed on dust-grain surfaces. However, neutral gas-phase reactions in the interstellar medium (ISM) can play an important role. In this paper, by investigating the reaction between aldehydes and the cyano radical, we show that both formaldehyde (CH$_2$O) and acetaldehyde (CH$_3 ...
arxiv   +1 more source

Direct synthesis of polymeric schiff bases from two amines and two aldehydes Patent [PDF]

open access: yes, 1970
Direct synthesis of polymeric schiff bases from two amines and two ...
Dalelio, G. F.
core   +1 more source

Azine polymers and process for preparing the same Patent [PDF]

open access: yes, 1970
Synthesis of azine polymers for heat shields by azine-aromatic aldehyde ...
Dalelio, G. F.
core   +1 more source

PPH dendrimers grafted on silica nanoparticles: surface chemistry, characterization, silver colloids hosting and antibacterial activity [PDF]

open access: yes, 2013
Polyphosphorhydrazone (PPH) dendrimers have been grafted on silica nanoparticles, and the surface functions of the dendrimers have been derivatized to phosphonates with lateral poly(ethyleneglycol) (PEG) chains.
Caminade, Anne-Marie   +6 more
core   +3 more sources

Facile synthesis of bis(indolyl)methanes using iron(III) phosphate [PDF]

open access: yesJournal of the Serbian Chemical Society, 2012
A new, convenient and high yielding procedure for the preparation of bis(indolyl)methanes in glycerol by electrophilic substitution reaction of indole with aldehydes in the presence of catalytic amount of FePO4 (5.0 mol%) as a highly stable and ...
Behbahani Kargar Farahnaz   +1 more
doaj   +1 more source

Aldehyde accumulation in Mycobacterium tuberculosis with defective proteasomal degradation results in copper sensitivity

open access: yesmBio, 2023
Mycobacterium tuberculosis is a major human pathogen and the causative agent of tuberculosis disease. M. tuberculosis is able to persist in the face of host-derived antimicrobial molecules nitric oxide (NO) and copper (Cu). However, M.
Gina Limón   +3 more
doaj   +1 more source

Transcriptome analysis of Zymomonas mobilis ZM4 reveals mechanisms of tolerance and detoxification of phenolic aldehyde inhibitors from lignocellulose pretreatment

open access: yesBiotechnology for Biofuels, 2015
BackgroundPhenolic aldehydes generated from lignocellulose pretreatment exhibited severe toxic inhibitions on microbial growth and fermentation. Numerous tolerance studies against furfural, 5-hydroxymethyl-2-furaldehyde (HMF), acetate, and ethanol were ...
X. Yi   +4 more
semanticscholar   +1 more source

The largest oxigen bearing organic molecule repository [PDF]

open access: yes, 2007
We present the first detection of complex aldehydes and isomers in three typical molecular clouds located within 200pc of the center of our Galaxy. We find very large abundances of these complex organic molecules (COMs) in the central molecular zone (CMZ), which we attribute to the ejection of COMs from grain mantles by shocks.
arxiv   +1 more source

Sheep liver cytosolic aldehyde dehydrogenase : a fresh perspective : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Chemistry at Massey University, New Zealand [PDF]

open access: yes, 1995
The pre-steady-state mechanism of aldehyde dehydrogenase has been further investigated using synthesised deuterated 4-trans-(N,N-dimethylamino) cinnamaldehyde as a substrate.
Sime, Richard Malcolm
core  

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