Results 21 to 30 of about 491,525 (298)

Identification of acetates in elasmopalpulus lignosellus pheromone glands using a newly created mass spectral database and kóvats retention indices

Química Nova, 2007
Based on a specially created mass spectral database utilizing 23 tetradecenyl and 22 hexadecenyl acetate standards along with Kóvats retention indices obtained on a very polar stationary phase [poly (biscyanopropyl siloxane)] (SP 2340), (Z)-9-hexadecenyl
Gulab N. Jham, Alexsandro A. da Silva, Eraldo R. Lima, Paulo A. Viana   +3 more
doaj   +1 more source

Gas-liquid chromatography of dialkyl, alkyl acyl, and diacyl derivatives of glycerol

Journal of Lipid Research, 1969
Dialkyl, alkyl acyl, and diacyl glycerols were resolved as trimethylsilyl ethers and as acetates by gas-liquid chromatography on a nonpolar stationary phase (OV-1).
Randall Wood, W.J. Baumann, Fred Snyder, H.K. Mangold   +3 more
doaj   +1 more source

ON TRIPHENYLMETHYL ACETATE. [PDF]

Journal of the American Chemical Society, 1903
n ...
Gomberg, M., Davis, G. T.
openaire   +2 more sources

Gas-liquid chromatographic analyses of 1,2-ethanediol monoethers and monoesters

Journal of Lipid Research, 1968
Synthetic mixtures of saturated and unsaturated monoethers and monoesters of 1,2-ethanediol, ranging in chain length from 12 to 20, were analyzed as acetates, trifluoroacetates (TFA), and trimethylsilyl (TMS) ethers by gas chromatography on polar and ...
Randall Wood, Wolfgang J. Baumann
doaj   +1 more source

Synthesis and biological activity of acetates of copper (II) and iron (III) for the control of Aedes aegypti (Diptera: Culicidae)

Orbital: The Electronic Journal of Chemistry, 2012
This work aimed to the synthesis of basic acetates of Cu (II) and Fe(III) against larvae of Aedes aegypti and Gram negative and Gram positive. The transition metal ions Cu (II) and Fe (III) have bactericidal activity and are toxic to Aedes aegypti larvae
Jéssica V. Nardeli, Claudio T. de Carvalho, Marcelo Alves Teixeira, Gustavo G. Fonseca, Eduardo J. de Arruda   +4 more
doaj   +1 more source

Effect of acute exposure of lead acetates on the morphology of liver and kidney of mice (Mus musculus) and the role of vitamin C as a repairing agent [PDF]

Basrah Journal of Veterinary Research, 2011
The objective of this study is to elicit the destructive effect of lead on the tissues of liver and kidney of mice and if vitamin C is capable of repairing the damage caused by lead. In this study, 40 male mice were used and divided into three groups as:
Ishraq J. H, Wissam S.H. Al-Uboody, M.A. Al-Diwan   +2 more
doaj   +1 more source

PdII-Catalyzed Cyclization of 1-Cyclopropyl-2-propynyl Acetates

CHIMIA, 1985
PdCl2(MeCN)2 catalyzes the cyclization of 1-cyclopropyl-2-propynyl acetates to 3-methyl-1,4-cyclopentadienyl acetates, which are cleaved in situ to 2-cyclopentenones.
Valentin Rautenstrauch
doaj   +1 more source

An environmentally benign cascade reaction of 1,2,3-indantriones with ethyl 2-(pyridine-2-yl)acetates for site-selective synthesis of 5H-isochromeno[4,3-b]indolizin-5-ones

Green Synthesis and Catalysis, 2021
A novel approach was developed for the synthesis of 5H-isochromeno [4,3-b]indolizin-5-ones (ICIDOs) 3 through a cascade reaction of 1,2,3-indantriones 1 with ethyl 2-(pyridine-2-yl)acetates 2.
Haodan He, Jiahui Nie, Yinggang Duan, Jun Lin, Shengjiao Yan   +4 more
doaj   +1 more source

Apples as enantiospecific bioreagents in the hydrolysis of racemic esters and oxygenation of alcohols obtained during the process

Acta Societatis Botanicorum Poloniae, 2014
Biotransformation carried out by apples (Malus silvestris) resulted in enantiospecific hydrolysis of racemic acetates, the derivatives of secondary aromatic-aliphatic or terpenic alcohols. The alcohols are oxygenated to ketones (reversible reaction). The
Agnieszka Mironowicz
doaj   +1 more source

Effect of ethyl acetate extract of usnea longissima on esophagogastric adenocarcinoma in rats [PDF]

Acta Cirúrgica Brasileira, 2019
Purpose: To investigate the effects of the EtOAc extract of U. longissima which is uninvestigated previously on esophagogastric cancer induced in rats with N-methyl-N-nitro-N-nitrosoguanidin (MNNG). Methods: The anticancer activity of EtOAc extract of
Renad Mammadov, Bahadir Suleyman, Durdu Altuner, Elif Demirci, Nihal Cetin, Adnan Yilmaz, Huseyin Baykal, Hilal Alpcan, Emine Akyuz Turumtay, Halis Suleyman   +9 more
doaj   +2 more sources