Phosphine carbon disulfide

CS2 can bind in monodentate end-on, bidentate chelate, bridging, or rj forms (Scheme 26). Most complexes of CS2 are low-valent electron-rich species, for example [Mo(Cp)(CO)2(/]2-CS2)] (51), [Ru(CO)2(PPh3)2( ] -CS2)] (52), and [Pt(PPh3)2 ( -CS2)] (53). Conversion of coordinated CS2 to CS and CS3 fragments can occur on coordination. The coordination chemistry of phosphine-carbon disulfide adducts (S2CPR3) has been reviewed these versatile ligands can act as 2 to 8 electron donors to metal centres. ... 

Various new phosphonium salts were prepared in a one-pot reaction of carbon disulfide, phosphines, and 1 followed by an exchange reaction of the zirconated metal fragment with 2 equiv. of electrophiles (Scheme 8-23) [206],... 

Sulfur dioxide and carbon disulfide react with bis(bulky phosphine)platinum complexes to give monomeric trigonal planar [Pt(PR3)2(S02)] and trimeric complexes such as [Pt3(/u-S02)(PR3)2] and [Pt3(/i-CS2)(PR3)2] where R = Cy or But70 71... 

Nitric oxide and gases Aluminum, BaO, boron, carbon disulfide, chromium, many chlorinated hydrocarbons, fluorine, hydrocarbons, ozone, phosphine, phosphorus, hydrazine, acetic anhydride, ammonia, chloroform, Fe, K, Mg, Mn, Na, sulfur... 

Reaction of bis(trimethylsilyl)phosphines with carbon dioxide afforded adducts and addition-silatropy products instead of phosphaketene or 1,3-diphosphaallene (R—P=C=P—R ) (equation 33, compare with equations 72 and 91)52. Similarly, reaction of 3 with carbon disulfide resulted in the addition-silatropy product (equation 34, cf. equations 73 and 94)53. Successful preparations of phosphaallenes utilizing alkali metal silylphosphides bearing bulky substituents are described in Section V. 

Two conditions can give rise to the spontaneous combustion of a fuel. One condition involves contact of the material with air. The other is the spontaneous ignition of an unstable self-reactive substance when it is kept at a sufficiently high temperature. Silane (SiH 4 ) and phosphine (PH 3 ) are the examples of the former case, and a mixed atmosphere of air and nickel carbonyl(Ni(CO) 4 ) or carbon disulfide (CS 2 ) are examples of the latter. 

The most widespread use of IMPs is in the aza-Wittig reaction. This is the reaction of an IMP with a carbonyl group to generate an imine, or derivative thereof, with concomitant formation of the corresponding phosphine oxide (Scheme 2). The reaction is successful with a wide range of carbonyl containing compounds such as aldehydes, ketones, acyl chlorides, amides, and in some cases esters.2 Exposure to carbon dioxide, carbon disulfide, isocyanates, isothiocyanates, and... 

Thiocarbonyl (see Thiocarbonyl) compounds react rapidly with iron carbonyls, but only in a few cases are mononuclear )] -C=S complexes reahzed. Most of the work in this area has resulted from the discovery that carbon disulfide reacts with iron carbonyl transfer agents, in the presence of phosphines or phosphites, to give complexes (127). In several of these cases, it is possible to exchange one or both of the phosphine/phosphite ligands in high yield. 

An oxidizer. The liquid is a sensitive explosive. Explosive reaction with carbon disulfide (when ignited), methanol (when ignited), pentacarbonyl iron (at 50°C), phosphine + oxygen, sodium diphenylketyl, dichlorine oxide, fluorine, nitrogen trichloride, ozone, perchloryl fluoride (at 100-300°C), vinyl chloride. Reacts to form explosive products with dienes (e.g., 1,3-butadiene, cyclopentadiene, propadiene). 

SAFETY PROFILE Poison by inhalation and ingestion. A corrosive eye, skin, and mucous membrane irritant. Potentially explosive reaction with water evolves hydrogen chloride and phosphine, which then ignites. Explosive reaction with 2,6-dimethylpyridine N-oxide, dimethyl sulfoxide, ferrocene-1,1 -dicarboxylic acid, pyridine N-oxide (above 60°C), sodium -L heat. Violent reaction or ignition with BI3, carbon disulfide, 2,5-dimethyl pyrrole + dimethyl formamide, organic matter, zinc powder. Reacts with water or steam to produce heat and toxic and corrosive fumes. Incompatible with carbon disulfide, N,N-dimethyl-formamide, 2,5-dimethylpyrrole, 2,6-dimethylpyridine N-oxide, dimethylsulfoxide, ferrocene-1,1-dicarboxylic acid, water, zinc. When heated to decomposition it emits highly toxic fumes of Cl" and POx. 

The first reported l,3,2X -thiazaphosphetidine ring system 588 was obtained by cycloaddition of isocyanates to l,2X -azaphospholes. They are in equilibrium with 2,4,lX -diazaphosphetidine-3-thiones. Two other 1,3,2-thiazaphosphetidines (e.g., 589) have been obtained by treatment of Af-nitrosoamines with 2,4-bisO -methoxyphenyl)-l,3,2,4-dithiadiphosphetane-2,4-disulfide. The addition of carbon disulfide to phosphinimes to give a phosphine sulfide and an isocyanate may involve a cyclic intermediate. ... 

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