نتایج جستجو برای: trimethylsilyl ether

تعداد نتایج: 23149  

Journal: :iranian journal of pharmaceutical sciences 0
seyed reza ghaffarian polymer engineering faculty, amirkabir university of technology, tehran, iran homayoun moaddel department of materials science and engineering, university of california,los angeles, ca, usa fatemeh s. majedi biomedical engineering faculty, amirkabir university of technology, tehran, iran young researcher club, islamic azad university, south tehran branch, tehran, iran mohammad mahdi hasani-sadrabadi polymer engineering faculty, amirkabir university of technology, tehran, iran biomedical engineering faculty, amirkabir university of technology, tehran, iran young researcher club, islamic azad university, south tehran branch, tehran, iran

the muscle-like technology would be of enormous advantages for biomedical applications such as medical implants and human assist devices. ionic polymer metal composites (ipmcs) are one kind of biomimetic actuators. an ionic polymer metal composite composed from an ionomer with high ion exchange capacity that packed between two thin metal layers. in the present study we focused on the preparatio...

2009
D. NUROK T. J. REARDON

Glucose, fructose, sucrose and kestose in a variety of factory products were determined .as trimethylsilyl derivatives by gas chromatography on open tubular columns. The advantages of using these columns are discussed.

Journal: :Chemical communications 2005
Siu Hin Chan Hung Kay Lee Yu Man Wang Nan Yan Fu Xiao Ming Chen Zong Wei Cai Henry N C Wong

A soluble 2,3,9,10-tetrakis(trimethylsilyl)pentacene (1) was synthesized; the discovery of the radical cationic character of in solution through EPR measurement has provided insights into the sensitivity of acenes towards light and oxygen.

Journal: :Chemical communications 2011
Yan Zhang Hao Peng Ming Zhang Yixiang Cheng Chengjian Zhu

Oxidative α-cyanation of tertiary amines is catalyzed by gold complexes with trimethylsilyl cyanide to afford the corresponding α-aminonitriles in the presence of tert-butyl hydroperoxide in good to excellent yields under acid-free conditions at room temperature.

Journal: :The Journal of antibiotics 1980
W J Wheeler D R Finley H E Osborne

The preparation of crystalline bis-trimethylsilylcefamandole (7) and its utility in the preparation and purification of cefamandole are described. Although stable to solvolysis in isopropyl alcohol, 7 underwent smooth conversion to cefamandole in the presence of water, methanol, or ethanol.

Journal: :Acta Crystallographica Section E Structure Reports Online 2008

Journal: :Journal of the American Society for Mass Spectrometry 1990

2010
Michael North Marta Omedes-Pujol

Propylene carbonate can be used as a green solvent for the asymmetric synthesis of cyanohydrin trimethylsilyl ethers from aldehydes and trimethylsilyl cyanide catalysed by VO(salen)NCS, though reactions are slower in this solvent than the corresponding reactions carried out in dichloromethane. A mechanistic study has been undertaken, comparing the catalytic activity of VO(salen)NCS in propylene...

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