18461-46-6

Upstream product

• 14040-11-0 tungsten hexacarbonyl 
• 82839-15-4 chlorophenylphosphine-pentacarbonyl-tungsten⁽⁰⁾=Chlorophenylphosphin-pentacarbonyl-wolfram⁽⁰⁾ 
• 15096-68-1 pentacarbonyl(acetonitrile)tungsten 
• 644-97-3 Dichlorophenylphosphine 

Downstream Products

• 17685-52-8 triiron dodecarbonyl 
• 117308-52-8 {PPh4}{(μ-PhP(H))Fe(CO)4W(CO)5} 
• 91582-69-3 (allyl-phenyl-chloro-phosphine)tungsten pentacarbonyl 
• 61300-75-2 phenylphosphine pentacarbonyltungsten⁽⁰⁾ 

Relevant academic research and scientific papers

Stabilization of R-P(H)A Species (A = OH, OR, S-, NH2, NHR, NR2, Cl, Br, I) by complexation with chromium and tungsten pentacarbonyls

The 7-phosphanorbornadiene complexes of chromium and tungsten pontacarbonylis react between 120

The "phospha-Wittig" reaction: A new method for building phosphorus-carbon double and single bonds from carbonyl compounds

The so-called "phospha-Wittig" reagents [(EtO)2P(O)PHR]M(CO)5 (M = Mo, W) are obtained via the reaction of primary phosphine complexes (RPH2)M(CO)5 with lithium diisopropylamide and diethyl chlorophosphate. The corresponding anions [(EtO)2P(O) - P-R]M(CO)5 react with carbonyl compounds under mild conditions to give the phosphaalkene complexes [R1R2C=PR]M(CO)5. A study of this reaction with R = Ph, R1 = i-Pr, and R2 = H has shown that the kinetic product is the (Z)-phosphaalkene complex, whereas the thermodynamic product is the E isomer. The stereochemistry of these complexes was established by X-ray crystal structure analysis. With α-diketones, only one carbonyl bond is converted into a P=C double bond, probably for steric reasons. Most of the phosphaalkene complexes thus obtained easily react with methanol or 2,3-dimethylbutadiene. The phosphane-Mo(CO)5 complexes synthesized via such a scheme are easily transformed into the corresponding P-sulfides by simple heating with sulfur in toluene. Thus, the "phospha-Wittig" reaction can also be viewed as a new tool for building organophosphorus species with P - C single bonds.