1024-07-3Relevant articles and documents
Novel small organo-P-S/Se heterocycles
Kilian,Slawin,Woollins
, p. 2288 - 2289 (2001)
Oxidative addition of elemental sulfur and selenium to cyclomonocarbatetraphosphines (PhP)4CR2 (R = H, Me) afforded novel five- and four-membered heterocycles PhP(E)CH2PhP(E)E2(E = S, Se) and PhP(Se)CMe2/s
A general and convenient route to dithiophosphonate salt derivatives
Van Zyl, Werner E.,Fackler, John P.
, p. 117 - 132 (2007/10/03)
2,4-Diaryl and 2,4-diferrocenyl-1,3-dithiadiphosphetane disulfide dimers, (RP(S)S)2, where R = Ph (1a), 4-C6H4OMe (1b) or ferrocenyl (Fc) (1c) react with a variety of alcohols, silanols, or trialkylsilylalcohols to form dithiophosphonic acids in a one-flask procedure. The generated acids have a relatively strong acidity which, upon deprotonation, facilitates the facile high yield conversion to monoanionic salts of the type [S2PR(OR′)]. The present study reports the systematic preparation of these salts with variation in both R and especially R′ groups. Compounds were characterized by 31P{1H} NMR spectroscopy and elemental analysis. High quality single crystals of (1a) were obtained from the slow cooling of a viscous melt which allowed for the X-ray crystal structure to be determined. Qualitative solubility data have been obtained for several of the isolated salts to provide valuable information for synthesis design, especially with regard to metal complexation. The title salts are effective precursors to obtain a series of new transition-metal complexes both in aqueous and non-aqueous solvents.
THE REACTION OF C-(N,N-DIALKYLAMINO)PHOSPHAALKENES AND THEIR DIMERS WITH SULFUR
Ionkin, A. S.,Ignat'eva, S. N.,Arbuzov, B. A.
, p. 1052 - 1054 (2007/10/02)
The nature of the dialkylamino group has a significant effect on the reactivity of C-(N,N-dialkylamino)phosphaalkenes upon their reaction with sulfur.
DIE STRUKTUR VON ALKYL- UND ARYLPERTHIOPHOSPHONSAEUREANHYDRIDEN IN LOESUNG
Ohms, Gisela,Treichler, Antje,Grossmann, Gisbert
, p. 95 - 102 (2007/10/02)
The analysis of 1H-, 31P- and 13C-NMR spectra of different alkyl- and arylperthiophosphonic acid anhydrides shows that these compounds prefer a dimeric structure in solution.They exist as 2,4-diorganyl-2,4-dithioxo-1,3,2λ5,4λ5-dithiadiphosphetanes.Most of the perthiophosphonic acid anhydrides form configuration isomers which differ in the position of the thioxo groups relatively to the ring plane.The concentration of the trans-isomer is generally larger than that of the cis-isomer.The ratio of the concentration of both isomers is obviously determined by the polarity of the solvent used.Mixing of solutions of different perthiophosphonic acid anhydrides results in unsymmetrical compounds also existing in cis- and trans-configuration. 31P chemical shifts and geminal P-P coupling constants for symmetrical and unsymmetrical perthiophosphonic acid anhydrides are presented and discussed. - Key words: 31P chemical shifts; P-P coupling constants; perthiophosphonic acid anhydrides; mixed perthiophosphonic acid anhydrides; configuration isomers; 2,4-diorganyl-2,4-dithioxo-1,3,2λ5,4λ5-dithiadiphosphetanes.
Organo-Phosphorus-Selenium Heterocycles
Fitzmaurice, Jonathan C.,Williams, David J.,Wood, Paul T.,Woollins, J. Derek
, p. 741 - 743 (2007/10/02)
Reaction of selenium with (PhP)5, or Li2Se with PhPCl2, gives a reactive intermediate (1) which undergoes reaction with acetone or CS2 to give new organo-phosphorus-selenium heterocycles which have been characterised by X-ray crystallography.
SULFURATION OF CYCLOPOLYPHOSPHINES WITH PHOSPHONOTRITHIOIC THIOANHYDRIDES
Andreev, N. A.,Grishina, O. N.
, p. 1365 - 1367 (2007/10/02)
The sulfuration of cyclopolyphosphines with bisphosphonotrithioic bisthioanhydrides leads to the formation of 2,4,5-triorgano-1,3,2,4,5-dithiatriphospholane 4-sulfides.
