Select All | Select None
You can now keep track of new articles from Mendeleev Communications on your personalized homepage!
The use of solid-phase extraction with polymethacrylate for the gas chromatographic determination of dimethylamine, trimethylamine, ethylamine, triethylamine, propylamine, dipropylamine and tripropylamine in aqueous solutions was studied (detection limits of 0.7–1.0 μg dm −3 ).
Alkyl 2-chloroacetoacetates undergo a complex reaction with dialkyl acetylenedicarboxylates in the presence of triphenylphosphine to produce a nearly 1:1 mixture of the cis/trans isomers of dialkyl 5-acetyl-2-oxo-3-(triphenylphosphoranylidene)tetrahydrofuran- 4,5-dicarboxylates in excellent yields.
New estrone derivatives containing 1,2,4-triazin-5-one moieties were synthesised through direct C−C coupling of estrone 3-methyl ether with 1,2,4-triazinones
Iron oxide phases of ferromagnetic order obtained by the reductive decomposition of iron(II) oxalate in situ synthesised within intraspheric voids of photonic crystals based on SiO 2 were found and studied by TG, DSC and magnetic measurements.
The reaction of tetracyanoethylene and isobutyraldehyde or 2-ethylbutanal in an excess of a hydrohalogen acid yields 2-halo-6-hydroxy-5,5-dimethyl(ethyl)-5,6-dihydro-3,4,4(1 H )-pyridinetricarbonitriles, the crystal and molecular structures of which were characterised by IR, NMR, MS and X-ray...
Fully soluble rigid hydrocarbon hyperbranched polymers exhibit high inner surface areas.
The complexes M 2 (R 4 Pc) 3 (M = Y III , Tb III ) and MM’(R 4 Pc) 3 (M = Y III , Tb III , M’ = Lu III ), and R 4 Pc 2– = (4,5,4’,5’,4”,5”,4”’,5”’-tetrakis(1,4,7,10,13-pentaoxatridecamethylene)phthalocyaninate anion), were synthesised and characterised by UV-VIS and 1 H NMR...
Using NMR spectroscopy, we found that the reactions of 6-chloro-2-hydroxy-2-oxo-4-phenyl- and 2,6-dichloro-2-oxo-4-phenyl- benzo( e )-1,2-oxaphosphorinines with molecular bromine result in 3-bromo-6-chloro-2-hydroxy-2-oxo-4-phenyl- and 3-bromo-2,6-dichloro-2-oxo-4-phenylbenzo( e...
A new synthetic approach to 1-(alk-1-ynyl)cyclopropenes 2 by the reaction of 1-(alk-1-ynyl)-1-chlorocyclopropanes 1 with lithium N,N -dialkylamides has been developed. Alkynylcyclopropenes 2, obtained by this method in situ or isolated in individual state can add dialkylamide anions across the...
In rich hydrogen–air flames, a chemical reaction is shown (by numerical methods) to have two stages, i.e ., a low-temperature stage with quadratic branching and a high-temperature stage with linear branching; changes in the chemical flame structure due to propylene additives are more effective...
results per page
Save this article to read later. You can see your Read Later on your DeepDyve homepage.
To save an article, log in first, or sign up for a DeepDyve account if you don't already have one.
Sign Up Log In
To subscribe to email alerts, please log in first, or sign up for a DeepDyve account if you don't already have one.
Read and print from thousands of top scholarly journals.
Sign up with Facebook
Sign up with Google
Already have an account? Log in
To get new article updates from a journal on your personalized homepage, please log in first, or sign up for a DeepDyve account if you don't already have one.