15285-42-4Relevant articles and documents
Alkyl and aromatic nitrates in atmospheric particles determined by gas chromatography tandem mass spectrometry
Yang, Xinhao,Luo, Feixian,Li, Junqi,Chen, Deyang,Ye,Lin, Weili,Jin, Jun
, p. 2762 - 2770 (2019/11/22)
Organic nitrates in the atmosphere are associated with photochemical pollution and are the main components of secondary organic aerosols, which are related to haze. An efficient method for determining organic nitrates in atmospheric fine particles (PMsub
USE OF NITROOXY ORGANIC MOLECULES IN FEED FOR REDUCING METHANE EMISSION IN RUMINANTS, AND/OR TO IMPROVE RUMINANT PERFORMANCE
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Paragraph 0130; 0131, (2014/06/11)
The present invention relates to a method for reducing the production of methane emanating from the digestive activities of a ruminant and/or for improving ruminant animal performance by using, as active compound at least one organic molecule substituted at any position with at least one nitrooxy group, or a salt thereof, which is administrated to the animal together with the feed. The invention also relates to the use of these compounds in feed and feed additives such as premix, concentrates and total mixed ration (TMR) or in the form of a bolus.
Generation and cross-coupling of benzyl and phthalimide-N-oxyl radicals in a cerium(IV) ammonium nitrate/N-hydroxyphthalimide/ArCH2R system
Terent'ev, Alexander O.,Krylov, Igor B.,Sharipov, Mikhail Y.,Kazanskaya, Zoya M.,Nikishin, Gennady I.
, p. 10263 - 10271,9 (2012/12/12)
A method was developed for the cross-dehydrogenative coupling of alkylarenes and related compounds with N-hydroxyphthalimide (NHPI) using cerium(IV) ammonium nitrate (CAN) to prepare O-substituted NHPI derivatives. The characteristic feature of the reaction is that NHPI plays a dual role. Thus, in the presence of CAN, NHPI generates the phthalimide-N-oxyl (PINO) radical, which abstracts a hydrogen atom from the benzyl position to form a C-centered radical. The target oxidative cross-coupling product is formed mainly through the recombination of PINO with the C-centered radical. Therefore, NHPI serves as a mediator for the radical process and a reagent for the radical cross-coupling. The target products were obtained in yields from 35 to 80%.
Direct oxidative installation of nitrooxy group at benzylic positions and its transformation into various functionalities
Kamijo, Shin,Amaoka, Yuuki,Inoue, Masayuki
supporting information; experimental part, p. 4654 - 4657 (2011/09/30)
C-H Nitrooxylation at benzylic positions has been achieved by employing the N-hydroxyphthalimide (NHPI) catalyst/cerium(IV) ammonium nitrate (CAN) reagent system. The nitrooxy groups were demonstrated to function as tentative hydroxy protecting groups, as well as excellent leaving groups for N- and C-substitution reactions. Hence, the present method offers a unique way to synthesize diverse O-, N-, or C-functionalized benzylic compounds from simple alkyl aromatics.
Aerobic alcohol oxidations mediated by nitric acid
Aellig, Christof,Girard, Christophe,Hermans, Ive
supporting information; experimental part, p. 12355 - 12360 (2012/02/01)
A touch of acid: Catalytic amounts of HNO3 can trigger the aerobic oxidation of alcohols in the presence of the solid acid amberlyst-15. The desired oxidation cycle, mediated by (H)NOx species, is in kinetic competition with the detr
Establishment of heterolytic and homolytic Y-NO2 bond dissociation energy scales of nitro-containing compounds in acetonitrile: Chemical origin of NO2 release and capture
Li, Xin,Zhu, Xiao-Qing,Zhang, Fan,Wang, Xiao-Xiao,Cheng, Jin-Pei
, p. 2428 - 2431 (2008/09/20)
(Chemical Equation Presented) The first heterolytic and homolytic N(O)-NO2 bond dissociation energy scales of three types Y-nitro (Y = N, O) compounds and corresponding radical anions in acetonitrile were established by using titration calorimetry combined with relevant electrochemical data through proper thermodynamic cycles.
Imidazolium ionic liquids as solvents for cerium(IV)-mediated oxidation reactions
Mehdi, Hasan,Bodor, Andrea,Lantos, Diana,Horvath, Istvan T.,De Vos, Dirk E.,Binnemans, Koen
, p. 517 - 524 (2007/10/03)
Use of imidazolium ionic liquids as solvents for organic transformations with tetravalent cerium salts as oxidizing agents was evaluated. Good solubility was found for ammonium hexanitratocerate(IV) (ceric ammonium nitrate, CAN) and cerium(IV) triflate in 1-alkyl-3-methylimidazolium triflate ionic liquids. Oxidation of benzyl alcohol to benzaldehyde in 1-ethyl-3-methylimidazolium triflate was studied by in-situ FTIR spectroscopy and 13C NMR spectroscopy on carbon-13-labeled benzyl alcohol. Careful control of the reaction conditions is necessary because ammonium hexanitratocerate(IV) dissolved in an ionic liquid can transform benzyl alcohol not only into benzaldehyde but also into benzyl nitrate or benzoic acid. The selectivity of the reaction of cerium(IV) triflate with benzyl alcohol in dry ionic liquids depends on the degree of hydration of cerium(IV) triflate: anhydrous cerium(IV) triflate transforms benzyl alcohol into dibenzyl ether, whereas hydrated cerium(IV) triflate affords benzaldehyde as the main reaction product. Reactions of ammonium hexanitratocerate(IV) with organic substrates other than benzyl alcohol have been explored. 1,4-Hydroquinone is quantitatively transformed into 1,4-quinone. Anisole and naphthalene are nitrated. For the cerium-mediated oxidation reactions in ionic liquids, high reaction temperatures are an advantage because under these conditions smaller amounts of byproducts are formed.
NO donors. Part 16: Investigations on structure-activity relationships of organic mononitrates reveal 2-nitrooxyethylammoniumnitrate as a high potent vasodilator
Koenig, Andreas,Roegler, Carolin,Lange, Kathrin,Daiber, Andreas,Glusa, Erika,Lehmann, Jochen
, p. 5881 - 5885 (2008/03/14)
The vasoactive properties of 14 organic mononitrates were investigated in vitro using PGF2α-precontracted porcine pulmonary arteries. A surprisingly wide range of vasorelaxant potencies was observed (pD2: 3.36-7.50). Activities showed to be highly sensitive to the molecular structure and the substituents at the molecular carrier of the nitrate group. A correlation between lipophilicity and vasorelaxant potency could not be recognized. 2-Nitrooxyethylammoniumnitrate (1) was found to be slightly superior to the high potency trinitrate GTN.
Generation of oxynitrenes and confirmation of their triplet ground states
Wasylenko, Walter A.,Kebede, Naod,Showalter, Brett M.,Matsunaga, Nikita,Miceli, Alexander P.,Liu, Yonglin,Ryzhkov, Lev R.,Hadad, Christopher M.,Toscano, John P.
, p. 13142 - 13150 (2008/03/11)
New sulfoximine- and phenanthrene-based photochemical precursors to oxynitrenes have been developed. These precursors have been used to examine the chemistry and spectroscopy of oxynitrenes. The first EPR spectra of oxynitrenes are reported and are consistent with their triplet ground states. Additional support for the triplet ground state of oxynitrenes is provided by trapping and reactivity studies, nanosecond time-resolved IR investigations, and computational studies.
Preparation of alkyl nitrates, nitrites, and thiocyanates from alcohols utilizing trichloroisocyanuric acid with triphenylphosphine
Hiegel, Gene A.,Nguyen, Jeremiah,Zhou, Yan
, p. 2507 - 2511 (2007/10/03)
Alcohols in acetonitrile are converted into alkyl nitrates, nitrites, or thiocyanates by the action of triphenylphosphine and trichloroisocyanuric acid along with silver nitrate, silver nitrite, or sodium thiocyanate, respectively.
