The first carbonyl halogen cation in the condensed phase, the superelectrophilic [ClCO]+ ion, has been clearly and unambiguously established by its complete, fully assigned vibrational spectrum. The cation is obtained by the reaction of COCl2 with SbF5 at room temperature in the form of a suspension, in which it is stabilized by oligomeric fluoroantimonate ions.
Effect of chemical composition on the neutral reaction products produced during electron beam irradiation of carbon tetrachloride/water (ice) films
作者:A. J. Wagner、C. Vecitis、G. M. Wolfe、C. C. Perry、D. Howard Fairbrother
DOI:10.1039/b204016f
日期:2002.7.18
The neutral reaction products formed during electron beam irradiation of carbontetrachloride/water (ice) films have been studied as a function of the film's initial CCl4 ∶ H2O ratio using a combination of reflection absorption infrared spectroscopy, mass spectrometry and X-ray photoelectron spectroscopy. When the initial CCl4 ∶ H2O ratio was high, the dominant reaction products in the film were C2Cl4
In situ generation of novel acyclic diaminocarbene–copper complex
作者:Dimitri Hirsch-Weil、David R. Snead、Sebastien Inagaki、Hwimin Seo、Khalil A. Abboud、Sukwon Hong
DOI:10.1039/b821169h
日期:——
A novel acyclic diaminocarbeneâcopper complex appears to be generated from a chloroamidinium salt and Cu(I)-thiophenecarboxylate in the presence of Grignard reagent based on 13C NMR studies and is a highly efficient catalyst for SN2â²-allylic alkylation.
Synthesis of stable isotope-labeled metabolites of asenapine
作者:Jeffrey T. Kuethe
DOI:10.1002/jlcr.2924
日期:2012.5.15
The stable isotope-labeled synthesis of four of the major metabolites of asenapine is described. The synthesis of [13CD3]-asenapine N-oxide proceeded in two synthetic steps. Preparation of [13CD3]-asenapine 11-hydroxysulfate and [13C6]-N-desmethylasenapine paralleled established synthetic protocols with effective utilization of labeled precursors. The synthesis of [13CD3]-asenapine N+-glucuronide was achieved in three chemical steps followed by purification.
Synthesis of specifically nitrogen-15- and carbon-13-labeled antitumor (2-haloethyl)nitrosoureas. The study of their conformations in solution by nitrogen-15 and carbon-13 nuclear magnetic resonance electronic control in their aqueous decomposition
作者:J. William Lown、Shive M. S. Chauhan
DOI:10.1021/jo00339a010
日期:1981.12
Synthesis of isotopically labelled DNA degradation products for use in mass spectrometric studies of cellular DNA damage
Thirteen substituted purines and pyrimidines bearing from three to five carbon, nitrogen and/or deuterium isotopic labels have been synthesized in yields ranging from .1 to 70%. Most of the products originate from the same small number of commercially available labelled starting materials, and in several cases one intermediate leads to two products, thus minimizing the expense and time required. The parent compounds are found in tissue as the result of DNA damage often linked with carcinogenesis and mutagenesis. The synthesized compounds serve as internal standards for the study of DNA damage using mass spectrometry.