The anionic thia-Fries rearrangement of aryl triflates
作者:Jonathan P. H. Charmant、Alan M. Dyke、Guy C. Lloyd-Jones
DOI:10.1039/b210648e
日期:2003.1.23
Aryl triflates undergo LDA-mediated rearrangement to generate o-hydroxyaryl trifluoromethylsulfones. In some cases, partitioning between rearrangement and aryne generation can be controlled.
作者:Peter P. Wickham、Kevin H. Hazen、Hong Guo、Garth Jones、Kelly Hardee Reuter、William J. Scott
DOI:10.1021/jo00006a016
日期:1991.3
The use of aryl triflates to form arynes as reactive intermediates is described. This allows the first general use of phenols as aryne precursors. Phenyl triflate reacts with LDA at - 78-degrees-C to form benzyne, which then reacts with diisopropylamine generating N,N-diisopropylaniline. Yields of diisopropylarylamines from aryne intermediates are superior to those previously reported. Regioisomeric ratios are similar to those obtained with use of other benzyne precursors.
Huisgen; Zirngibl, Chemische Berichte, 1958, vol. 91, p. 2375,2380
作者:Huisgen、Zirngibl
DOI:——
日期:——
WICKHAM, PETER P.;HAZEN, KEVIN H.;GUO, HONG;JONES, GARTH;REUTER, KELLY HA+, J. ORG. CHEM., 56,(1991) N, C. 2045-2050
作者:WICKHAM, PETER P.、HAZEN, KEVIN H.、GUO, HONG、JONES, GARTH、REUTER, KELLY HA+
DOI:——
日期:——
[EN] METHOD FOR DETERMINING AUTHENTICITY AND ADULTERATION OF MARKED PETROLEUM HYDROCARBONS<br/>[FR] PROCÉDÉ PERMETTANT DE DÉTERMINER L'AUTHENTICITÉ ET L'ADULTÉRATION D'HYDROCARBURES PÉTROLIERS MARQUÉS
申请人:SICPA HOLDING SA
公开号:WO2021110525A1
公开(公告)日:2021-06-10
The present invention provides a method for determining the authenticity of a petroleum hydrocarbon allegedly comprising at least one specific chemical marker, as well as a method for determining adulteration of a petroleum hydrocarbon marked with at least one specific chemical marker. The methods claimed and described herein rely upon the use of specific chemical markers in combination with laser ionization at a wavelength of between about 300 nm and about 370 nm coupled with ion mobility spectrometry or with mass spectrometry.