- 関
- deoxidation、deoxygenate
WordNet
- remove oxygen from (water)
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2012/03/19 20:01:48」(JST)
[Wiki en表示]
Deoxygenation is a chemical reaction involving the removal of molecular oxygen (O2) from a reaction mixture or solvent, or the removal of oxygen atoms from a molecule.
Classic representatives of deoxygenation are:
- the replacement of a hydroxyl group by hydrogen (A-OH → A-H) in the Barton-McCombie deoxygenation or in the Markó-Lam deoxygenation
- the replacement of an oxo group by two hydrogen atoms (A=O → A) in the Wolff-Kishner reduction
A chemical reagent for the deoxygenation of many sulfur and nitrogen oxo compounds is the trifluoroacetic anhydride / sodium iodide combination [1] for example in the deoxygenation of the sulfoxide diphenylsulfoxide to the sulfide diphenylsulfide:
The reaction mechanism is based on activation of the sulfoxide by a trifluoroacetyl group and oxidation of iodine. Iodine is formed quantitatively in this reaction and therefore the reagent is used for the analytical detection of many oxo compounds.
See also
- Preparation of stable carbenes
- Hydrogen deoxygenation purifier
References
- ^ Trifluoroacetic anhydride-sodium iodide reagent. Nature and applications Arkivoc 2007 (JE-2136MR) Zbigniew H. Kudzin, Marcin H. Kudzin, Józef Drabowicz, and Andrzej Kotyński Link
UpToDate Contents
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English Journal
- Ceria promoted deoxygenation and denitrogenation of Thalassiosira weissflogii and its model compounds by catalytic in-situ pyrolysis.
- Aysu T1, Maroto-Valer MM2, Sanna A3.
- Bioresource technology.Bioresour Technol.2016 May;208:140-8. doi: 10.1016/j.biortech.2016.02.050. Epub 2016 Feb 24.
- Pyrolysis of microcrystalline cellulose, egg white powder, palm-jojoba oils mixtures Thalassiosira weissflogii model compounds was performed with CeO2 at 500°C, to evaluate its catalytic upgrading mechanism. Light organics, aromatics and aliphatics were originated from carbohydrates, proteins and l
- PMID 26938809
- Catalytic pyrolysis of wheat bran for hydrocarbons production in the presence of zeolites and noble-metals by using TGA-FTIR method.
- Lazdovica K1, Liepina L1, Kampars V1.
- Bioresource technology.Bioresour Technol.2016 May;207:126-33. doi: 10.1016/j.biortech.2016.01.117. Epub 2016 Feb 11.
- Pyrolysis of wheat bran with or without catalysts was investigated using TGA-FTIR method in order to determine the influence of zeolite and noble metal catalysts on the evolution profile and relative yield of the volatile compounds. The addition of all catalysts decreased the volatile matter of whea
- PMID 26874441
- Chemo- and regioselective reductive deoxygenation of 1-en-4-yn-ols into 1,4-enynes through FeF3 and TfOH co-catalysis.
- Yang Z1, Kumar RK1, Liao P1, Liu Z1, Li X1, Bi X2.
- Chemical communications (Cambridge, England).Chem Commun (Camb).2016 Apr 21;52(35):5936-9. doi: 10.1039/c5cc10518h.
- We report chemo- and regioselective direct reductive deoxygenation of 1-en-4-yn-3-ols into 1,4-enynes through FeF3 and TfOH cooperative catalysis under NBSH-mediated conditions. Further, we show the efficient synthesis of a pharmaceutically significant 1,4-enyne. The present methodology can also be
- PMID 27054508
Japanese Journal
- 第31回環境サイエンスカフェ講演録 海のデッドゾーン : 貧酸素水塊 : 温暖化の影響と予測の不確実性
- 環境研究 = Environmental research quarterly (182), 123-149, 2017-03
- NAID 40021144994
- The human physiological impact of global deoxygenation
- Production of Metallurgical Coke Utilizing Low-Rank Coals Upgraded by Mild Solvent Treatment
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