THIOPHOSPHORYL DISULFIDE

Naskar, M., Debnath, S.C., and Basu, D.K. Effect of Bis (Diisopropyl) Thiophosphoryl Disulfide on the Co-Vulcanization of Carboxyhc Acrylonitrile Butadiene Rubber and Ethylene Propylene Diene Rubber Blends. Rubber Chem. Technol. 75(3), 309-322, July/August 2002. 

CA-isoprene rubber cured with bis(dusopropyl)thiophosphoryl disulfide (DIPDIS) shows results at 160°C, producing a predominantly monosulfidic network structure [14]. Similar work on heat-resistant network structures has been carried out on other synthetic rubbers. For example, a sulfur-less system using 1 phr TBBS, 2.0 phr DTDM, and 0.4 phr TMTD in SBR gives the best aging resistance [15]. 

Abstract New applications of ID and 2D solid state (SS) NMR spectroscopy in structural studies of inclusion complexes (ICs) formed by organic host lattices (cyclodextrins, calixarenes, cyclophosphazenes, and fullerenes) are described. Each section of the review gives short characteristics of host molecules and recent applications of SS NMR. Less common systems, which are interesting as models for SS NMR studies, (bis[6-0,6-0 -(l,2 3,4-diiso-propylidene-a-D-galactopyranosyl) thiophosphoryl] disulfide (DGTD) and 1,2-dichloro-ethane/tris(5-acetyl-3-thienyl) methane (TATM)), are also discussed. 

Carbohydrate derivatives employed as host molecules often posses in their molecular structure other NMR active nuclei than carbon-13, which offer additional probes to investigate subtle structural effects. In particular, phosphorus-31 is an attractive nucleus owing to 100% abundance and high sensitivity. As reported by Potrzebowski and coworkers, bis[6-0,6-0 -( l,2 3,4-diisopropy-lidene-a-D-galactopyranosyl) thiophosphoryl] disulfide (DGTD) shown in... 

Figure 11 Effect of mixing procedure (processing under mild conditions, closed mixer (CM) and under oxidative conditions, open mixer (OM) of an internal mixer, a RAPRA torque rheometer) on photooxidative stability of PP containing additives (2.5 X 10mol 100g ). Inset compares photostabilizing effectiveness of mildly processed (CM) thiophosphoryl disulfide...

Novel example of this reaction type are given by the copper-catalyzed decomposition of ethyl diazoacetate in the presence of bis(dialkoxyphosphoryl)disulfides 374 350 where P/S insertion sometimes accompanies the S/S insertion, and of bis(dialkoxy-thiophosphoryl)trisulfides 375 351 where desulfurization to give the disulfide derived product occurs during the reaction. Only P/S insertion product was obtained from bis(dialkoxyphosphoryl)trisulfide or -tetrasulfide 376 the copper-catalyst is dispensable in this case351K... 

Thiocarbonyl tetrachloride, 46, 21 jk-Thiocresoi (Warning), 47, 107 Thionyl chloride, 46, 16, 98 48, 107 Thiophosgene, 46, 21 Thiophosphoryl chloride, reaction with methylmagnesium bromide to yield tetramethylbiphosphine disulfide, 46,102... 

Tetramethylbiphosphine disulfide has been prepared by reaction of methylmagnesium halides with thiophosphoryl chloride. ... 

The published preparation of the disulfide from thiophosphoryl chloride (4.28 mole) and methylmagnesium iodide (4.0 mole) [1,2] is hazardous. On the stated scale and at the recommended rate of addition of the 47% solution of thiophosphoryl chloride in ether, it... 

A facile one-pot synthesis of thiophosphoryl xanthates was carried out by using a mild base DBU-catalysed sequential reaction of excess alcohols with carbon disulfide and diethoxy thiophosphoryl chloride. ... 

Unlike the phosphorus chlorides mentioned above, thiophosphoryl chloride reacts with alkylmagnesium halides to form tetraalkyldiphosphane disulfides which contain a P-P bond 402-411... 

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