53440-24-7Relevant academic research and scientific papers
Gaseous nitrogen dioxide for sustainable oxidative deprotection of trimethylsilyl ethers
Javaheri, Mehdi,Naimi-Jamal, M. Reza,Dekamin, Mohammad G.,Kaupp, Gerd
experimental part, p. 142 - 148 (2012/03/26)
In this study, trialkylsilyl ethers of indispensable protected alcohols are oxidatively deprotected in neat form with gaseous nitrogen dioxide (NO 2). Quantitative yields of aldehydes or ketones are obtained without the necessity of chromatography. The byproducts, nitrogen monoxide, anhydrous nitric acid, and hexamethyldisiloxane, can be quantitatively separated by evaporation and distillation in closed systems for recycling or further use. The direct new method supersedes the previous techniques that produce dangerous wastes and require chromatographic workup, while the atmospheric gas NO 2 and its gaseous reduction products are easily kept in closed systems until further use. Copyright Taylor and Francis Group, LLC.
Regeneration of the carbonyl compounds from their semicarbazones using tetra-n-alkylammonium bromates
Baruah, Akashi,Nath, Utpal,Das, Satya Sandhya,Das, Pranab Jyoti
, p. 2157 - 2160 (2007/10/03)
Tetra alkyl ammonium bromates are prepared by a simple procedure and used for the oxidative regeneration of the parent carbonyl compound from their semicarbazones. Reaction conditions are simple and the deprotection gives satisfactory yield of the carbonyl compound.
COMPOUNDS CONTAINING PHENYL LINKED TO ARYL OR HETEROARYL BY AN ALIPHATIC- OR HETEROATOM-CONTAINING LINKING GROUP
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, (2008/06/13)
This invention is directed to the pharmaceutical use of phenyl compounds, which are linked to an aryl moiety by various linkages, for inhibiting tumor necrosis factor. The invention is also directed to the compounds, their preparation and pharmaceutical compositions containing these compounds. Furthermore, this invention is directed to the pharmaceutical use of the compounds for inhibiting cyclic AMP phosphodiesterase
Compounds containing phenyl linked to aryl or heteroaryl by an aliphatic-or heteroatom-containing linking group
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, (2008/06/13)
This invention is directed to the pharmaceutical use of phenyl compounds, which are linked to an aryl moiety by various linkages, for inhibiting tumor necrosis factor. The invention is also directed to the compounds, their preparation and pharmaceutical compositions containing these compounds. Furthermore, this invention is directed to the pharmaceutical use of the compounds for inhibiting cyclic AMP phosphodiesterase.
