Accession Number : ADA254143


Title :   Synthesis of Bis-(Trifluoromethyl) Trisulfide and Bis- (Trifluoromethylthio) Selenide


Descriptive Note : Final rept. Mar 1989-Dec 1990,


Corporate Author : GEO-CENTERS INC FORT WASHINGTON MD


Personal Author(s) : Munavalli, Shekar ; Rossman, David I ; Rohrbaugh, Dennis K ; Ferguson, C P ; Ferguson, C Parker


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a254143.pdf


Report Date : Jun 1992


Pagination or Media Count : 23


Abstract : The reaction of trifluoromethylsulfenyl chloride with hydrogen sulfide at -78 deg C and in the presence of a catalyst, namely 4- dimethylaminopyridine, furnished excellent yields of the desired bis- (trifluoromethyl) trisulfide in under 24 hrs. The previous preparation of this product required 30 days at room temperature. Bis-(trifluoromethyl) di- and pentasulfides were characterized as by-products by their gas chromatographic/mass spectrometric data. Replacement of the above catalyst with pyridine or N,N- dimethylaniline or triethylamine considerably reduced the yields of the expected product. Under similar experimental conditions, using hydrogen selenide bis- (trifluoromethylthio) selenide has been prepared for the first time. The structures assigned to these compounds have been confirmed by their mass spectral data.


Descriptors :   *SYNTHESIS , *ORGANIC COMPOUNDS , PREPARATION , STRUCTURES , CATALYSTS , SELENIDES , HYDROGEN SULFIDE , MASS SPECTROMETRY , PYRIDINES , REPLACEMENT , ROOM TEMPERATURE , CHLORIDES


Subject Categories : Organic Chemistry


Distribution Statement : APPROVED FOR PUBLIC RELEASE