ChemInform Abstract: ORGANIC SULFUR COMPOUNDS, XXXIII. CARBON DIOXIDE ELIMINATION FROM GASEOUS RADICAL CATIONS OF THIOL ESTERS: INTRAMOLECULAR OXYGEN TRANSFER OF THE (C+3/C+3) TYPE

1979 ◽  
Vol 10 (20) ◽  
Author(s):  
B. KOHNE ◽  
K. PRAEFCKE ◽  
H. SCHWARZ
Keyword(s):  
Carbon Dioxide ◽  
Oxygen Transfer ◽  
Radical Cations ◽  
Sulfur Compounds ◽  
Organic Sulfur ◽  
Carbon Dioxide Elimination ◽  
Organic Sulfur Compounds ◽  
Thiol Esters

Titanium(IV)−(R,R,R)-Tris(2-phenylethoxy)amine− Alkylperoxo Complex Mediated Oxidations:  The Biphilic Nature of the Oxygen Transfer to Organic Sulfur Compounds

1997 ◽  
Vol 119 (29) ◽  
pp. 6935-6936 ◽  
Author(s):  
Marcella Bonchio ◽  
Stefano Calloni ◽  
Fulvio Di Furia ◽  
Giulia Licini ◽  
Giorgio Modena ◽  
...  
Keyword(s):  
Oxygen Transfer ◽  
Sulfur Compounds ◽  
Organic Sulfur ◽  
Organic Sulfur Compounds

Organische Schwefelverbindungen, XXXIII CO2-Eliminierung aus Radikalkationen von Thiolestern in der Gasphase: Intramolekulare Sauerstoff-Wanderung vom (C+3/C+3)-Typ / Organic Sulfur Compounds, XXXIII CO2 Elimination from Gaseous Radical Cations of Thiol Esters: Intramolecular Oxygen Transfer of (C+3/C+3)-Type

1979 ◽  
Vol 34 (2) ◽  
pp. 316-320 ◽  
Author(s):  
Bernd Kohne ◽  
Klaus Praefcke ◽  
Helmut Schwarz
Keyword(s):  
Gas Phase ◽  
Oxygen Transfer ◽  
Collisional Activation ◽  
Radical Cations ◽  
Ester Group ◽  
Reaction Sequence ◽  
Thiol Ester ◽  
Organic Sulfur Compounds ◽  
Thiol Esters ◽  
First Time

Abstract It is shown for the first time that under electron impact conditions an intramolecular oxygen transfer is possible from the thiol ester funtion onto the carbon atom of a second thiol ester group. The reaction sequence is terminated by CO2 elimination and the proposed structure of the resulting product ion is based on 13 carbon labelling experiments and collisional activation mass spectrometry. In addition, some unusual examples of ring contraction processes in the gas phase are reported.

scholarly journals Pollution status of volatile organic sulfur compounds causing odor in Xi River and factors influencing spatial distribution

2020 ◽  
Vol 20 (4) ◽  
pp. 1264-1270
Author(s):  
Xiang Tu ◽  
Shaohua Chen ◽  
Siyu Wang ◽  
Haiqing Liao ◽  
Xuejiao Deng
Keyword(s):  
Spatial Distribution ◽  
Sulfur Compounds ◽  
Organic Sulfur ◽  
Industrial Emissions ◽  
Diethyl Sulfide ◽  
Organic Sulfur Compounds ◽  
Factors Influencing ◽  
Pollution Status ◽  
Volatile Organic ◽  
Volatile Organic Sulfur Compounds

Abstract This study investigated the pollution status of volatile organic sulfur compounds (VOSCs) and the factors influencing their spatial distribution in the Xi River in Shenyang, China. A method for simultaneous determination of 14 VOSCs that cause odor in water samples was developed by using purge and trap coupled with gas chromatography and a flame photometric detector. The results indicated that each target compound could be identified from 15 sampling sites, and the total concentration of 14 VOSCs ranged from 2.575 to 52.981 μg L−1. Dimethyl sulfide (DMS) was the most important contaminant with an average concentration of 4.029 μg L−1, a detection rate of 93.33% and a variation coefficient of 0.72. The VOSCs were primarily distributed in suburban and rural sections, and the suburban section was the worst in regard to pollution by VOSCs. Dimethyl trisulfide was primarily distributed in urban and suburban sections of the Xi River due to industrial emissions. Ethanethiol, DMS, and ethyl methyl sulfide, which are typical by-products of microbial anaerobic decomposition from domestic wastewater, were found in abundance in the suburban section. Diethyl sulfide, diethyl disulfide, methyl propyl disulfide, and 1-propyl disulfide representing agricultural nonpoint source pollution were mostly distributed in the rural section.

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