Phosphorus chlorids

Another useful modification of this reagent is the reaction of CF3CCI3 with zinc and DMF in the presence of AICI3 [60, 63] (equation 53). The alcohol product can be treated subsequently with DAST, thionyl chloride, or phosphorus chlorides to afford the allyl substitution product regio- and stereoselectively [66] (equation 54). 

About 80-90% of the elemental P produced is reoxidized to (pure) phosphoric acid (p. 521). The rest is used to make phosphorus oxides (p. 503). sulfides (p. 506), phosphorus chlorides and oxochloride (p. 4%). and organic P compounds. A small amount is convened to red phos rftorus (see below) for use in the striking surface of matches for pyrotechnics and as a flame retarding agent (in polyamides). Bulk price for P4 is S2.00/kg. 

Phosphorus sulfides Phosphorus chlorides Organic P compounds... 

Chlor-oxyd, n. chlorine oxide, -phosphor, m. phosphorus chloride, -pikrin, n. chloropicrin. -platin, n. platinic chloride, -platinsiiure,. chloroplatinic acid, -quecksilber, n. mercury chloride (either one), -raucherung, /. chlorine fumigation. 

Phosphor-athcr, m. phosphoric ether (ester of phosphoric acid, specif, ethyl phosphate), -basis, phosphorus base, -bestimmung, /. determination of phosphorus, -blei, n. lead phosphide Min.) pyromorphite. -bombe, f. phosphorus bomb. -brandgranate, /. phosphorus incendiary shell, -brei, m. phosphorus paste, -bromid, n. phosphorus bromide, specif, phosphorus pentabromide, phos-phorus(V) bromide, -bromijr, n. phosphorus tribromide, phosphorus(III) bromide, -bronze, /. phosphor bronze, -calcium, n. calcium phosphide, -chlorid, n. phosphorus chloride, specif, phosphorus pcntachloride, phosphorus(V) chloride, -chloriir, n. phosphorous chloride (phosphorus trichloride, phosphorus(III) chloride), -dampf, tn. phosphorus vapor or fume, -eisen, n. ferrophos-phorus iron phosphide, -eisensinter, m. diadochite. 

When 2.36 g of phosphorus was burned in chlorine, the product was 10.5 g of a phosphorus chloride. Its vapor rook 1.77 times as long to effuse as the same amount of CO, under... 

Phosphorous pentachloride Phosphorus chloride (PCI5) (8) Phosphorane, pentachloro- (9) (10026-13-8)... 

The elemental phosphorus that is not converted into phosphoric acid is used mainly to produce phosphorus chlorides (PCI3 and PCI5) and phosphorus oxychloride (POCI3 ). These are important reagents for production of agrochemicals, drugs, and other specialty products. 

Griepink B, Gonska H, Muntau H (1983) The Certification of the Contents (Mass Fractions) of Nitrogen, Phosphorus, Chloride, Sodium, Potassium, Magnesium and Calcium and of the Kjeldahl-Nitrogen Content of a Skim Milk Powder, BCR No. 63. Report EUR 9138 EN. Commission of the European Communities, Brussels. 

Sodium, potassium, calcium, magnesium, phosphorus, chloride, and acetate are necessary components of PN for maintenance of numerous cellular functions. 

Oleksyszyn, J., Gruszecka, E., Kafarski, P., and Mastalerz, P., New phosphonic analogs of aspartic and glutamic acid by aminoalkylation of trivalent phosphorus chlorides with ethyl acetoacetate, ethyl levulinate and benzyl carbamate, Monatsh. Chem., 113, 59, 1982. 

Boisselle, A.P. and Meinhardt, N.A., Acetylene-allene rearrangement reactions of trivalent phosphorus chlorides with a-acetylenic alcohols and glycols,. Org. Chem., 27, 1828, 1962. 

The reactions of tri-ATZ-butylplumbyllithium with various phosphorus chlorides have been investigated. For example, reaction of the lithium compound with diphenylchlorophosphane afforded hexa-tert-butyldiplumbane and tetraphenyldiphosphane as the isolated products. Analogous reactions with -butyl-substituted phosphorus chlorides yielded (tri-A, 7-butylplumbyl)di- -butylphosphane or tri- z -butylplumbyl(amino)-, t -butylphosphane. These and other molecules were characterized by multinuclear magnetic resonance spectroscopic studies.24... 

The isomeric 1,3-dioxino[4,5-/i]quinoline (698) and l,3-dioxino[5,4-/i]quinoline (700, R = Me) were prepared by cyclization of the appropriate N-( 1,3-benzodioxanyl)aminomethylenemalonates (697 and 699, R = Me) in boiling phosphoryl chloride for 12 hr (72MI5). While the methyl derivative of compound 699 (R = Me) readily gave l,3-dioxino[5,4-/i]quinoline (700, R = Me), the unsubstituted and chloro derivatives (699, R = H, Cl) could not be cyclized by heating in phosphorus chloride, even if triethylamine, SnCl4, or PC15 was also present (72MI5). 

Phosphorylation of phenolate anions with dimethyl phosphorochloridothionate in water-dichloromethane systems normally gives large amounts of dithiopyrophos-phate because of extensive hydrolysis of the phosphorus chloride, but in the presence of tetrabutylammonium salts and 1 % imidazole, phosphorylation of the phenolate anion is complete. The explanation lies in an evident combination of activation of acylating agent (by imidazole) and of nucleophile (by phase-transfer catalysis).71... 

Phosphorus azide difluoride-borane, 4316 Phosphorus chloride difluoride, 3979... 

Uses. As chlorinating agent manufacture of other phosphorus chloride compounds producing iridescent metallic deposits... 

Complete chlorination of 4,4 -bipyridine to octachloro-4,4 -bipyridine is accomplished by vapor-phase chlorination at 555°C. Mono-, di-, tri-, and tetrachloro-4,4 -bipyridines substituted at the positions ortho to the nitrogen atoms are obtained at lower temperatures. 2,6-Dihydroxy-3-cyano-4,4 -bipyridine gives 2,5,6-trichloro-3-cyano-4,4 -bipyridine on reaction with phosphorus chlorides, ring substitution accompanying replacement... 

The activated phosphorus reagents 269 and 270 are conventionally prepared by the reaction of 2(3//)-oxazolone with the corresponding phosphorus chlorides in the presence of triethylamine. The phosphorus chlorides employed include phosphoryl chloride, thiophosphoryl chloride, mono- and dichlorophosphates, and phosphinic chloride (Fig. 5.66). 

The reaction flask should be connected to the receiver by a tube of large bore and equipped, preferably, with ground-glass fittings. Two traps between the receiver and the aspirator are desirable to assure no contact between the phosphorus chlorides and water. 

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