ISSN:
0044-2313
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Preparation and Characterization of Selenium Compounds with the 2,4,6-tris(trifluoromethyl)phenyl SubstituentReaction of 2,4,6-tris(trifluoromethyl)phenyl lithium and red selenium results in a product which by acidic hydrolysis yields bis[2,4,6-tris(trifluoromethyl)phenyl] diselenide 1. With diazomethane this compound reacts to form bis[2,4,6-tris(trifluoromethyl)phenylselenenyl] methane 2, with bis(triphenylphosphine)ethene platinum(0) the corresponding bis(triphenylphosphine)bis-[2,4,6-tris(trifluoromethyl)phenylselenenyl] platinum(II) 3 is formed. Chlorine and bromine cleave the selenium-selenium bond in 1 and 2,4,6-tris(trifluoromethyl)phenylselenenyl chloride 4 and -bromide 5 are formed. The selenenyl halides are starting materials for the preparation of N,N′-bis-[2,4,6-tris(trifluoromethyl)phenylselenenyl] sulfur(IV) diimide 6 and sulfinylimino-2,4,6-tris(trifluoromethyl)phenyl selenide 7. The X-ray structures of 1 and 7 are discussed.
Notes:
Durch Reaktion von 2,4,6-Tris(trifluormethyl)phenyllithium mit rotem Selen und anschließender saurer Hydrolyse des Reaktionsprodukts bildet sich Bis[2,4,6-tris(trifluormethyl)phenyl]diselenid 1. Mit Diazomethan reagiert diese Verbindung zu Bis[2,4,6-tris(trifluormethyl)phenylselenenyl]methan 2, mit Ethen-bis(triphenylphosphan)-platin(0) entsteht Bis[2,4,6-tris(trifluormethyl)phenylselenenyl]bis(triphenylphosphan) platin(II) 3. Chlor und Brom spalten die Selen-Selen Bindung in 1 unter Bildung von 2,4,6-Tris(trifluormethyl)phenylselenenylchlorid 4 und -bromid 5. Die Selenenylhalogenide sind Ausgangsstoffe für N,N′-Bis[2,4,6-tris(trifluormethyl)phenyl-selenenyl]schwefel(IV)-diimid 6 und Sulfinylimino-2,4,6-tris(trifluormethyl)phenyl-selenid 7. Die Einkristall-Röntgenstrukturen von 1 und 7 werden diskutiert.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19905860102
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