ISSN:
0044-2313
Keywords:
1,′,3,3′-Tetrakis(dimethylamino)-1λ5, 3λ5-diphosphete
;
sulfanolysis
;
bis(dimethylamino)thiophos-phonylmethylidene-methyl-bis(dimethylamino)phosphorane
;
1,′, 3,3′ -tetrakis(dimethylamino)-2,4-bis-(ethylthio)-1λ5, 3λ5-diphosphete
;
1,′,3,3′-tetrakis(dimethyl-amino)-1,2-dihydro-3λ5-[1,3]-diphosphetiumthiophenolate
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Reaction of 1,′, 3,3′-Tetrakis(dimethylamino)-1λ5,3λ5-diphosphete with S—H Acidic Compounds.Reaction of 1,′,3,3′-tetrakis(dimethyl-amino)-1λ5,3λ5-diphosphete (1) with hydrogen sulfide yields bis(dimethylamino)thiophosphonylmethylidene-methyl-bis(dimethylamino)phosphorane (5).Water eliminates dimethylamine from 5 and forms bis(dimethyl-amino)thiophosphonyl-methyl(dimethylamino)phosphonylmethylene 6. The reaction of 1 with ethylmercaptane yields the 2,4-bis(ethylthio)-derivative of 1, i.e. compound 8 and bis(dimethylamino)phosphanylmethylidene-methyl-bis(dimethylamino)phosphorane (9), which is also formed from 1 and 2,4,6-trimethylphenylphosphane. Thiophenol protonates 1 to give the corresponding cation which is isolated as its thiophenolate, 10. Properties, nmr and mass spectra of 5, 6 and 8 - 10 are described and discussed.
Notes:
Die Reaktion von 1,′,3,3′-Tetrakis(dimethylamino)-1λ5, 3λ5 -diphosphet (1) mit Schwefelwasserstoff führt zu Bis(dimethylamino)thiophosphonylmethyliden-methyl-bis(dimethylamino)phosphoran(5). Wasser spaltet aus 5 Dimethylamin ab und bildet Bis(dimethylamino)thiophosphonyl-methyl(dimethylamino)phosphonylmethylen 6. Bei der Umsetzung von 1 mit Ethylmercaptan entstehen das 2,4-Bis(ethylthio)-Derivat von 1, die Verbindung 8 und Bis(dimethylamino)-phosphanylmethyliden-methyl-bis(dimethylamino)phosphoran (9), das auch aus 1 und 2, 4, 6-Trimethylphenyl-phosphan gebildet wird. Thiophenol protoniert 1 zum entsprechenden Kation, das als Thiophenolat 10 isoliert wird. Eigenschaften, NMR- und Massenspektren von 5, 6 und 8 - 10 werden beschrieben und diskutiert.
Additional Material:
1 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19936190909
