Results 31 to 40 of about 139,683 (195)

Composición y capacidad antioxidante in-vitro de aceites esenciales ricos en Timol, Carvacrol, trans-Anetol o Estragol Composition and in-vitro antioxidant capacity of essential oils rich in Thymol, Carvacrol, trans-Anethole or Estragole

Salud UIS, 2009
Se determinó por cromatografía de gases acoplada a espectrometría de masas (GC-MS) la composición química de aceites esenciales (AE), aislados por hidrodestilación asistida por la radiación de microondas (MWHD), de las especies vegetales aromáticas ...
Amner Muñoz-Acevedo, Vladimir V. Kouznetsov, Elena E. Stashenko   +2 more
doaj  

Carbohydrate-Based Azacrown Ethers in Asymmetric Syntheses

Chemistry, 2021
Carbohydrate-based crown ethers represent a special group of chiral phase transfer catalysts. Several derivatives of these macrocycles have been synthesized in our research group.
István Orbán, Péter Bakó, Zsolt Rapi
doaj   +1 more source

The glyceryl ethers in man and cow*

Journal of Lipid Research, 1962
The glyceryl ethers were studied in lipids from human bone marrow, spleen, and milk; from yellow bone marrow and milk of cow; and from the yolk of hens' eggs. The highest concentrations were found in human red bone marrow and in human milk.
Bo Hallgren, Sam Larsson
doaj   +1 more source

ETHER IN THE TROPICS. [PDF]

The Lancet, 1913
n ...
openaire   +2 more sources

Miscibility of poly(ether ether ketone)/poly(ether diphenyl ether ketone) blends

Polymer, 1996
Poly(ether ether ketone) and poly(ether diphenyl ether ketone) homopolymers are prepared by nucleophilic substitution routes. Miscibility of PEEK/PEDEK blends has been studied by wide-angle X-ray diffraction (WAXD) and differential scanning calorimetry (d.s.c.).
Xiang Ling Ji, Zhong Wen Wu, Wan Jin Zhang   +2 more
openaire   +2 more sources

ON THE OXIDATION OF ETHER. [PDF]

Journal of the American Chemical Society, 1915
n ...
Isham, R. M., Vail, C. E.
openaire   +2 more sources

Composés d'addition des halogénures de niobium(V) et de tantale(V): II. Stabilité relative des composés des chlorures avec quelques éthers, sulfures et nitriles

CHIMIA, 1971
New NMR methods for the determination of relative stability constants are developed. These methods are used for the study of niobium(V) and tantalum(V) chlorides adducts with series of ethers, sulfides, and nitriles. The relative stabilities of nitriles
A. Merbach, J.-C. Bünzli
doaj   +1 more source

CH2 Linkage Effects on the Reactivity of Bis(aminophosphine)–Ruthenium Complexes for Selective Hydrogenation of Esters into Alcohols

Scientific Reports, 2017
A novel ruthenium complex binding to two subtly different aminophosphine ligands, (o-PPh2C6H4CH2NH2)(o-PPh2C6H4NH2)RuCl2, was successfully isolated. This bis(aminophosphine)–ruthenium complex shows efficient activity in both dimethyl oxalate (DMO) and ...
Xiaolong Fang, Mingjun Sun, Jianwei Zheng, Bin Li, Linmin Ye, Xiaoping Wang, Zexing Cao, Hongping Zhu, Youzhu Yuan   +8 more
doaj   +1 more source

Thermal transitions and structural properties of synthetic cholesterol alkyl and alkenyl ethers: analogues of biological cholesterol esters.

Journal of Lipid Research, 1983
Nine even-numbered saturated (C4 to C20) and two unsaturated (C18:1, C18:2) cholesterol alkyl ethers were studied by differential scanning calorimetry, polarizing microscopy, and X-ray powder diffraction.
R J Deckelbaum, G Halperin, D Atkinson
doaj   +1 more source

Isocampholenic Acid Derivatives as Potential Fragrances

Molecules
(+)-Isocampholenic acid, prepared in two steps from (1S)-(+)-10-camphorsulfonic acid in 60% yield (on a scale of 172 mmol), served as the starting compound for the synthesis of small libraries of isocampholenic acid derivatives, comprising a total of 60 ...
Luka Ciber, Tjaša Koželj, Kaja Prosenak, Nejc Petek, Franc Požgan, Jurij Svete, Bogdan Štefane, Uroš Grošelj   +7 more
doaj   +1 more source