نتایج جستجو برای: and straightforward

تعداد نتایج: 16827992  

Journal: :Proceedings of the Design Society: International Conference on Engineering Design 2019

Journal: :Journal of the Brazilian Chemical Society 2020

Journal: :Journal of the American Chemical Society 2010

Journal: :Circulation: Genomic and Precision Medicine 2018

2016
Silvia Varela-Aramburu Richard Wirth Chian-Hui Lai Guillermo Orts-Gil Peter H Seeberger

Gold nanoclusters are small (1-3 nm) nanoparticles with a high surface area that are useful for biomedical studies and drug delivery. The synthesis of small, surface-functionalized gold nanoclusters is greatly dependent on the reaction conditions. Here, we describe a straightforward, efficient and robust room temperature one-pot synthesis of 2 nm gold nanoclusters using thioglucose as a reducin...

Journal: :Organic & biomolecular chemistry 2010
Julien Pytkowicz Olivier Stéphany Sinisa Marinkovic Sébastien Inagaki Thierry Brigaud

Two efficient routes are reported for the synthesis of both enantiomers of trifluoroalaninol in enantiopure form. The first pathway involves a Strecker-type reaction performed from a chiral trifluoromethyloxazolidine (Fox). The second route, which is more direct, involves, as a key step, the reduction of chiral oxazolidines or imines derived from ethyl trifluoropyruvate.

عبداله جناب زاده, , محمدرضا باقری, , نعمت اله ریاضی, ,

  UBV ligh curves together with color curves of the semi-detached eclipsing binary RZ Cas are presented. The light curves are analyzed and the spectroscopic elements and the Hipparcos information are used to compute the absolute parameters of the system. The light curve anomalies and occasional flat minima are discussed. Based on the existing evidence, a straightforward explanation for the prim...

Heshmatollah Alinezhad, Neda Ghobadi

An efficient and convenient procedure for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones and thiones by condensation of 1,3-dicarbonyl compounds, Aromatic and aliphatic aldehydes, and urea or thiourea in the presence of catalytic amount of Brønsted acidic ionic liquid 3-methyl-1-sulfonic acid imidazolium chloride {[Msim]Cl} under thermal solvent-free conditions reacted easily to afford the co...

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