543-87-3Relevant academic research and scientific papers
Practical catalytic nitration directly with commercial nitric acid for the preparation of aliphatic nitroesters
An, Jichao,He, Pan,Li, Wenhao,Liu, Peipei,Si, Mengyuan,Yang, Bo,Yang, Guanyu
supporting information, p. 6612 - 6616 (2020/09/21)
To pursue a sustainable and efficient approach for aliphatic nitroester preparation from alcohol, europium-triflate-catalyzed nitration, which directly uses commercial nitric acid, has been successfully developed. Gram scalability with operational ease showed its practicability.
Some unusual minor volatile components of tomato
Buttery, Ron G.,Takeoka, Gary R.
, p. 6264 - 6266 (2007/10/03)
The identities and possible origins of three minor unusual volatile components of tomato are discussed. These are pentyl nitrate, the first identification of a volatile alkyl nitrate in a fresh vegetable or fruit; 5-ethyl-2(5H)-furanone, which, besides its presence in tomato, was found to be a major autoxidation product of pure (2)-3-hexenal; and 5-ethylcyclopentene-1- carbaldehyde, a likely unusual linolenic acid oxidation product.
The nitration of styrenes by nitric acid in dichloromethane
Lewis, Richard J.,Moodie, Roy B.
, p. 563 - 567 (2007/10/03)
Kinetics and products of reaction of 4-R-styrenes (R = Me, H, Cl, CF3, NO2) with nitric acid in dichloromethane are reported. Reaction occurs in the alkene group and aromatic nitration is insignificant. With increasingly electron-withdrawing substituents the reaction changes from one which is third order in nitric acid and gives rise to the 1-arylethyl nitrate, to one which is of higher order in nitric acid and gives rise to the 2-nitro-1-arylethyl nitrate (β-nitro-nitrate). Both reactions proceed through transition states with carbocation character, by initial β-addition of H+ and NO2+ respectively. The β-nitro-nitrate is formed in part also by a radical pathway, as are other minor products.
Separation of Diastereomeric and Enantiomeric Alkyl Nitrates - Systematic Approach to Chiral Discrimination on Cyclodextrin LIPODEX-D
Schneider, Manfred,Ballschmiter, Karlheinz
, p. 539 - 544 (2007/10/03)
High-resolution gas chromatographic separation of all diastereomeric monomethyl-substituted cyclohexyl nitrates is shown on a nonpolar methylpolysiloxane stationary phase, and the first application of this procedure to the environmental diastereomeric analysis of alkyl nitrates is presented.Two characteristic signals in the achiral analysis of atmospheric samples could be assigned to the smallest alkyl nitrate containing two asymmetric carbon atoms, 3-methyl-2-pentyl nitrate.Retention indices in the temperature-programmed separation based on the n-alkanes were determined.The homologous series of 1-alkyl nitrates were found to be useful as ECD-visible n-alkanes.Enantiomeric separation of alkyl nitrates was achieved on heptakis(3-O-acetyl,-2,6-di-O-pentyl)-β-cyclodextrin (LIPODEX-D).The influence of the nitrooxy group and the alkyl chain length on the chiral discrimination on LIPODEX-D is discussed for 25 chiral alkyl nitrates.The absolute configurations of some alkyl nitrates were assigned by asymmetric synthesis of enantiomerically pure references.The complexity of the alkyl nitrate mixtures present in air samoles does not allow a direct chiral separation as the alkyl nitrates partly coelute on the LIPODEX-D column.Column coupling of LIPODEX-D with a polar achiral stationary phase like polyalkylenglocol (PAG) was successfully applied to solve this problem, and the chiral alkyl nitrates present in a typical air sample were separated.A systematic nomenclature for alkyl nitrates is introduced to handle the steadily growing number of branched and long-chain nitrates detected in environmental analysis. - Keywords: analytical methods; alkyl nitrates; chiral resolution; cyclodextrins; gas chromatography
