39048-34-5

Basic information

• Product Name: bis(triphenylphosphoranylidene)ammonium chloropentacarbonyltungstate
• Synonyms: bis(triphenylphosphoranylidene)ammonium chloropentacarbonyltungstate
• CAS NO: 39048-34-5
• Molecular Weight: 897.943
• Mol File: 39048-34-5.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: bis(triphenylphosphoranylidene)ammonium chloropentacarbonyltungstate(CAS DataBase Reference)
• NIST Chemistry Reference: bis(triphenylphosphoranylidene)ammonium chloropentacarbonyltungstate(39048-34-5)
• EPA Substance Registry System: bis(triphenylphosphoranylidene)ammonium chloropentacarbonyltungstate(39048-34-5)

Safety Data

• Hazardous Substances Data: 39048-34-5(Hazardous Substances Data)

Upstream product

• 78709-76-9 {bis(triphenylphosphine)nitrogen}{HW(CO)5} 
• 638-29-9 n-valeryl chloride 
• 98-88-4 benzoyl chloride 
• 14040-11-0 tungsten hexacarbonyl 
• 21050-13-5 bis(triphenylphosphine)iminium chloride 
• 17524-65-1 ClHgMn(CO)5 
• 18115-12-3 ClHgCo(CO)4 

Downstream Products

• 99416-23-6 bis(triphenylphosphine)iminium pentacarbonyl(3-phenylethyl)tungstenate⁽⁰⁾ 
• 82880-64-6 PPN[W(CO)5SCHO] 
• 82880-70-4 PPN[W(CO)5SCHS] 
• 99016-87-2 ((C₆H₅)3P)2N⁽¹⁺⁾*W(CO)5COCH₃^(1-)=(((C₆H₅)3P)2N)W(CO)5COCH₃ 
• 99016-89-4 bis(triphenylphosphine)iminium tungsten pentacarbonyl benzoate 
• 36515-94-3 ((C₆H₅)3P)2N⁽¹⁺⁾*W(CO)5OCOC₆H₅^(1-)=(((C₆H₅)3P)2N)W(CO)5OCOC₆H₅ 
• 82963-38-0 {W(⁽¹³⁾CO)5Cl}^(1-)*((C₆H₅)3P)2N⁽¹⁺⁾ = {W(⁽¹³⁾CO)5Cl}{((C₆H₅)3P)2N} 

Relevant articles and documents

Oxidation of molybdenum(0) and tungsten(0) carbonyl complexes with silver triflate

Benzyltriethylammonium chloropentacarbonylmolybdate (1) and chloropentacarbonyl-tungstate (2) complexes react with CF3SO3Ag in DME via a combination of chloride exchange and a redox process, as revealed by cyclic voltammetry and ESR spectrometry. The resulting intermediate M(I) species disproportionate to M(0) and M(II) so that 3 equiv of TfOAg are required for the quantitative conversion into the M(II) complex. Analogous PPN complexes 3 and 4 only undergo the redox process (in DME); in this instance, the chloride exchange is precluded, presumably due to strong pairing of the complex anion with the counterion.

Selective reduction of acyl chlorides to aldehydes by anionic 6B transition-metal hydrides

Acyl chlorides can be selectively and rapidly reduced, under mild conditions, by group 6B anionic hydrides, HM(CO)4L- (M = Cr, W; L = CO, PR3), giving the corresponding aldehydes and the metal chlorides CIM(CO)4L-. The reaction is nearly quantitative for both aliphatic and aromatic acyl chlorides using solvent systems such as dichloromethane, tetrahydrofuran, or acetonitrile. Only in the presence of acid will the aldehydes consume a second equivalent of hydride, subsequently being reduced to alcohols. The anionic hydrides selectively reduce acyl chlorides in the presence of other reducible groups such as alkyl bromides or nitro aromatics. In situ preexchange of hydrogen by deuterium (HM(CO)4L-/ CH3OD → DM(CO)4L-/CH3OH) allows for deuterium delivery, giving RCDO products, as indicated by 2H NMR.