نتایج جستجو برای: cyclohexane

تعداد نتایج: 2654  

Journal: :Nippon kagaku zassi 1960

Erik De Clercq Khan Mohammad Sardar Yar Sadish Kumar Shanmugam, Vivek Gupta Yatendra Kumar

Brown alga, Turbinaria conoides was successively extracted with n-hexane, cyclohexane, methanol and ethanol:water (1:1). The extracts were evaluated for antibacterial and antifungal activities by disc diffusion method. Minimal inhibitory concentration was determined for active extracts by broth dilution method. The antiviral activity and cytotoxicity of the extracts were tested in human embryon...

Journal: :Acta Crystallographica Section E Structure Reports Online 2009

2017
Fei Wang Guosheng Liu

Thanks to its atomand step-economy, C–H bond oxidation represents a “hot topic” in synthetic chemistry. However, due to the ubiquity of such bonds in organic molecules, regioand enantioselective C–H bond oxidation turns out to be extremely challenging, and efficient direct methods are in high demand. Compared to the success of aliphatic sp C–H oxidation by enzymes (such as cytochrome P450, Figu...

Journal: :Molecules 2015
Loránd Kiss Enikő Forró György Orsy Renáta Ábrahámi Ferenc Fülöp

Cyclohexane analogues of the antifungal icofungipen [(1R,2S)-2-amino-4-methylenecyclopentanecarboxylic acid] were selectively synthesized from unsaturated bicyclic β-lactams by transformation of the ring olefinic bond through three different regio- and stereocontrolled hydroxylation techniques, followed by hydroxy group oxidation and oxo-methylene interconversion with a phosphorane. Starting fr...

Journal: :Acta biochimica Polonica 2008
Przemysław Szczeciński Diana Lamparska Adam Gryff-Keller Wanda Gradowska

Organic extracts of six urine samples from children treated with nitisinone, a medicine against tyrosinemia type I, were investigated by (1)H and (19)F NMR spectroscopy. The presence of unchanged 2-[2-nitro-4-(trifluoromethyl)benzoyl]cyclohexane-1,3-dione (NTBC), 6-hydroxy-2-[2-nitro-4-(trifluoromethyl)benzoyl]cyclohexane-1,3-dione (NTBC-OH) and 2-nitro-4-trifluoromethylbenzoic acid (NTFA) as w...

2016
Liubov A. Belyaeva Wangyang Fu Hadi Arjmandi-Tash Grégory F. Schneider

Transfer of large, clean, crack- and fold-free graphene sheets is a critical challenge in the field of graphene-based electronic devices. Polymers, conventionally used for transferring two-dimensional materials, irreversibly adsorb yielding a range of unwanted chemical functions and contaminations on the surface. An oil-water interface represents an ideal support for graphene. Cyclohexane, the ...

Journal: :Chemical communications 2015
Biplab Manna Soumya Mukherjee Aamod V Desai Shivani Sharma Rajamani Krishna Sujit K Ghosh

A diaminotriazine functionalized novel MOF (DAT-MOF-1) has been synthesized stemming out of a π-electron-deficient pore-surface functionalization based linker-design principle, which results in efficient selectivity of benzene sorption over its aliphatic analogue cyclohexane, crucial from the industrial standpoint.

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