Results 11 to 20 of about 135,807 (258)

A low-toxicity method for the separation of lanosterol and dihydrolanosterol from commercial mixtures [PDF]

open access: yes, 2004
We describe an inexpensive, low-toxicity and high-yielding method for the production of pure lanosterol and dihydrolanosterol from the commercially available mixture.
Kavtaradze, Levan K.   +2 more
core   +4 more sources

Thixotropic behavior of metal-containing coordination polymers: Melt viscosity of neutral aliphatic polyesters with Zn carboxylates [PDF]

open access: yes, 1996
The viscosity behavior of polymer melts containing complexes formed between the neutralized polyester poly(diethylene glycol-co-succinic acid) and Zn acetates is discussed.
Liu, G.   +3 more
core   +11 more sources

Clostebol acetate [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2011
The title compound, C(21)H(29)ClO(3) [systematic name (8R,9S,10R,13S,14S,17S)-4-chloro-3-oxoandrost-4-en-17β-yl acetate], is a 4-chloro derivative of testosterone, used as an anabolic androgenic agent or applied topically in ophthalmological and dermatological treatments. The absolute configurations at positions 8, 9, 10, 13, 14 and 17 were established
E. Maccaroni   +3 more
openaire   +4 more sources

Effect of dipole polarizability on positron binding by strongly polar molecules [PDF]

open access: yes, 2015
A model for positron binding to polar molecules is considered by combining the dipole potential outside the molecule with a strongly repulsive core of a given radius.
Gribakin, G. F., Swann, A. R.
core   +2 more sources

Asymmetric synthesis of 2-substituted oxetan-3-ones via metalated SAMP/RAMP hydrazones [PDF]

open access: yes, 2013
2-Substituted oxetan-3-ones can be prepared in good yields and enantioselectivities (up to 84% ee) by the metalation of the SAMP/RAMP hydrazones of oxetan-3-one, followed by reaction with a range of electrophiles that include alkyl, allyl, and benzyl ...
Beasley, Benjamin   +3 more
core   +1 more source

Acetate Metabolism and the Inhibition of Bacterial Growth by Acetate [PDF]

open access: yesJournal of Bacteriology, 2019
High concentrations of organic acids such as acetate inhibit growth of Escherichia coli and other bacteria. This phenomenon is of interest for understanding bacterial physiology but is also of practical relevance. Growth inhibition by organic acids underlies food preservation and causes problems during high-density ...
Pinhal, Stéphane   +3 more
openaire   +4 more sources

Lipase catalysed kinetic resolution of racemic 1,2-diols containing a chiral quaternary center [PDF]

open access: yes, 2018
Optically active 1,2-diols are valuable buildings blocks in organic synthesis. In the present paper, a set of racemic 1,2-diols with an ester functional group are prepared, starting from -ketoesters in a three-step procedure with moderate yields.
Gonzalo Calvo, Gonzalo de
core   +2 more sources

ON TRIPHENYLMETHYL ACETATE. [PDF]

open access: yesJournal of the American Chemical Society, 1903
n ...
Gomberg, M., Davis, G. T.
openaire   +3 more sources

Preparation of gas-tight strontium-doped lanthanum cobaltate by an aqueous sol-gel process [PDF]

open access: yes, 1996
Gas-tight dense membranes of highly Sr-doped LaCoO3 (such as the composition La0.3Sr0.7CoO3 chosen in this study) are difficult to prepare using usual synthesis processes.
Bouwmeester, H.J.M.   +3 more
core   +2 more sources

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