Mass spectral fragmentation pathways in some glycoluril‐type explosives. A study by collision‐induced dissociation and isotope labeling

Yinon, Jehuda; Bulusu, Suryanarayana; Axenrod, T.; Yazdekhasti, H.

doi:10.1002/oms.1210291109

Cited by 16 publications

(7 citation statements)

References 12 publications

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“…Yinon, Boettger, and Weber (1972) were first to report the use of negative ion mass spectrometry to detection of TNT. In addition, they have studied the ionization and fragmentation of glycoluril-type explosives (Yinon et al, 1994), deuterated TNT derivatives and synthetic metabolites (Yinon & Hwang, 1984). In another studies, Crellin, Dalleska, and Beauchamp (1997) and Crellin, Widmer, and Beauchamp (1997) tested chemical ionization of nitrate ester explosives TNT and RDX with Si(CH 3 ) 3 þ cation using FTICR-MS. As a result, the explosives formed adducts with Si(CH 3 ) 3 þ , and some specific fragmentation of TNT were observed.…”

Section: Chemical Ionization Studiesmentioning

confidence: 97%

Ion spectrometric detection technologies for ultra‐traces of explosives: A review

Mäkinen

Nousiainen

Sillanpää

2011

Mass Spectrometry Reviews

147

102

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In recent years, explosive materials have been widely employed for various military applications and civilian conflicts; their use for hostile purposes has increased considerably. The detection of different kind of explosive agents has become crucially important for protection of human lives, infrastructures, and properties. Moreover, both the environmental aspects such as the risk of soil and water contamination and health risks related to the release of explosive particles need to be taken into account. For these reasons, there is a growing need to develop analyzing methods which are faster and more sensitive for detecting explosives. The detection techniques of the explosive materials should ideally serve fast real-time analysis in high accuracy and resolution from a minimal quantity of explosive without involving complicated sample preparation. The performance of the in-field analysis of extremely hazardous material has to be user-friendly and safe for operators. The two closely related ion spectrometric methods used in explosive analyses include mass spectrometry (MS) and ion mobility spectrometry (IMS). The four requirements-speed, selectivity, sensitivity, and sampling-are fulfilled with both of these methods.

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Section: Chemical Ionization Studiesmentioning

confidence: 97%

Ion spectrometric detection technologies for ultra‐traces of explosives: A review

Mäkinen

Nousiainen

Sillanpää

2011

Mass Spectrometry Reviews

147

102

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“…The glycolurils have been received a great deal of attention due to their practical applications, such as fertilizers [1], polymer cross-linking [2,3], explosives [4], stabilizers of organic compounds against photodegradation [5], combinatorial chemistry [6], catalysts, bleaching activators [7][8][9], and the monomer in supramolecular chemistry [10].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and study of glycoluril derivatives

Boudebouz¹,

Arrous²,

Бакибаев³

2016

AIP Conference Proceedings

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Abstract. Improve and illustrate the etherification of tetramethylol glycoluril using excess of methyl and ethyl alcohols in the presence of acid catalyst like HCl and HNO 3 under temperature not exceeding 55 °C. Furthermore, attempts to obtain 1,4-diphenyl 1,2-dimethylol glycoluril which is a new compound from the condensation of 1,4 diphenyl glycoluril with formaldehyde in the presence of water under mild temperature. The techniques used to identify the compounds of the present study are: FTIR spectroscopy, HPLC and 13 C NMR spectroscopy.

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“…While the doublet at 6 8.42-8.58 ppm is assigned to the proton located between the two nitro groups at positions 3 and 5. As in compounds (9-13) the 'H NMR of the methyl and methoxy protons of the two arylsulfonyl moieties in com-I pounds (16) and (17) respectively resonate at two different positions. This results in two sets of signals starting at high fields: the singlet at 6 2.45 ppm and 3.88 ppm for compounds (16) and ( carbazole cation, followed by loss of an aryl radical (exclusive to 16, R = CH, and 17, R = OCH,).…”

mentioning

confidence: 94%

Synthesis and Spectral Studies of Some Aryl Sulfides and Sulfones

Hamed

El‐Faham

Saad

et al. 1996

Phosphorus, Sulfur, and Silicon and the Related Elements

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The reaction of 2-chloro-l,3,5-trinitrobenzene (picryl chloride) and an equivalent amount of arylthiolate (R = H, CH,. OCH,, Br. CI, NO,) gave 2-arylthio-l,3.5-trinitrobenzenes (1-6). It is found that the chemical shifts of H-4.6 gave good linear relationship with Hammett u constants indicating that the inductive effect of the substituents of the arylthio moieties is transmitted to the picryl ring through the sulfur atom. Meanwhile the reaction of picryl chloride with two fold arylthiolate gave 1.2-bis arylthio-3.5-dinitrobenzenes (%13) except with 4-nitrobenzenethiolate. The 'H NMR spectra of bis arylthio compounds indicate that these sulfides exist in a skew conformation. The oxidation of bis arylthio compounds with KMnO, gave the corresponding I ,2-bis-arylsulfonyl-3.5-dinitrobenzenes (1519). Fragmentation processes using tandem mass spectrometry (MS/MS) in relation to structure and substituent are discussed.

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Mass spectral fragmentation pathways in some glycoluril‐type explosives. A study by collision‐induced dissociation and isotope labeling

Cited by 16 publications

References 12 publications

Ion spectrometric detection technologies for ultra‐traces of explosives: A review

Ion spectrometric detection technologies for ultra‐traces of explosives: A review

Synthesis and study of glycoluril derivatives

Synthesis and Spectral Studies of Some Aryl Sulfides and Sulfones

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