نتایج جستجو برای: crown ether

تعداد نتایج: 39424  

Journal: :Journal of the Japan Institute of Metals and Materials 1995

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Journal: :Molbank 2010

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Journal: :ACS Medicinal Chemistry Letters 2012

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Journal: :Acta Polymerica Sinica 2011

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Journal: :Journal of Porphyrins and Phthalocyanines 2011

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2001
SARI KIVINIEMI Harri Lönnberg Jouko Vepsäläinen

Study was made of host-guest complexation of neutral crown ethers with fiveand six-membered Nheteroaromatic cations and purinium cation. Complexation of tetraphenylborate with selected Nheteroaromatic cations and tropylium cation also was studied. Crown ether complexes were characterized by mass spectrometric and 1H NMR spectrometric methods and by X-ray crystallography. Fast atom bombardment m...

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Journal: :Molecules 2017
Taras M Sokolenko Maya I Dronkina Emmanuel Magnier Lev M Yagupolskii Yurii L Yagupolskii

The "chlorination/fluorination" technique for aliphatic trifluoromethyl ether synthesis was investigated and a range of products with various functional groups was prepared. The results were compared with oxidative desulfurization-fluorination of xanthates with the same structure.

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Journal: :Bulletin of the Chemical Society of Japan 1983

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Journal: :Journal of Synthetic Organic Chemistry, Japan 1993

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Journal: :Journal of the American Chemical Society 1990

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