4073-31-8

Upstream product

• 644-97-3 Dichlorophenylphosphine 
• 1636-14-2 bis(diethylamino)phenylphosphine 
• 109-89-7 diethylamine 

Downstream Products

• 1638-86-4 diethyl phenylphosphonite 
• 20496-63-3 (naphthalen-2-yl)(phenyl)phosphinic acid 
• 4233-16-3 N,N-diethyl-P-phenyl-phosphonamidous acid fluoride 
• 70403-04-2 C₁₀H₁₆NOP 
• 25408-83-7 Diethylamidophenyl Chloroselenophosphonate 
• 708-90-7 (N,N-diethylamino)(methyl)(phenyl)phosphine 
• 126741-66-0 C₁₅H₂₁ClNP 
• 126741-65-9 C₁₅H₂₁ClNP 
• 90928-99-7 diethylamino(diphenylmethyl)phenylphosphine 
• 153360-84-0 diethylamino-p-methoxyphenyl-phenyl-phosphine 
• 82159-38-4 1,4-Butandiylbis<(diethylamino)phenylphosphan> 
• 1636-14-2 bis(diethylamino)phenylphosphine 
• 80974-41-0 Trichlor(diethylamino)phenylphosphoran 
• 146286-07-9 Phenyl-phenylethinyl-phosphinigsaeure-diethylamid 

Relevant academic research and scientific papers

Synthesis and structure of bis-phosphorylated 1,4:3,6-dianhydro-D-mannitol derivatives

A number of bis-phosphorylated 1,4:3,6-dianhydro-D-mannitol derivatives were synthesized. The increased steric loading of the phosphorus-containing residues in the compounds prepared gives rise to complicated 1H and 31P NMR spectra a

Enantioseparation of P-Stereogenic Secondary Phosphine Oxides and Their Stereospecific Transformation to Various Tertiary Phosphine Oxides and a Thiophosphinate

Secondary phosphine oxides incorporating various aryl and alkyl groups were synthesized in racemic form, and these products formed the library reported in this study. TADDOL derivatives were used to obtain the optical resolution of these P-stereogenic sec

New Access to Six-Membered Phosphacycle Annulated Polyaromatic Ring System

A facile Ag-catalyzed intramolecular C–P bond formation reaction from easily accessible phosphine oxides has been developed. Several new heteroatoms fused π-conjugated molecules were synthesized from this procedure with their structures confirmed by X-ray

P-stereogenic wide bite angle diphosphine ligands

Two modular synthetic approaches for the preparation of novel wide bite angle diphosphine ligands containing stereogenic P-atoms have been developed, leading to compounds (S,S)-2,2′-bis(methylphenylphosphino)diphenyl ether (L1) and (S,S)-2,2′-bis(ferrocen

Polyhedral oligomeric silsesquioxane-conjugated bis(diphenylphosphino)amine ligand for chromium(III) catalyzed ethylene trimerization and tetramerization

Polyhedral oligomeric silsesquioxanes (POSSs) were attached to conventional bis(diphenylphosphino)amine (PNP) ligand as solubility-enhancing materials for catalytic ethylene trimerization and tetramerization. Differently functionalized arylphosphine ligands of the type (Ph)2PN(POSS)P(Ph)(ArR) (R = functional groups) were systematically developed, and their corresponding chromium(III) complexes were formed. The developed precatalysts exhibited excellent tolerance in solvents, including even low-carbon-number hydrocarbons such as n-pentane, n-hexane, or cyclohexane. In particular, the ortho-fluorophenyl-substituted complex showed higher stability even at higher temperatures above 120 °C. The ortho-OCF3-phenyl-substituted complex showed outstanding catalytic activity, which reached 2287 kg/g Cr/h at 30 bar.

A diphenyl ether derived bidentate secondary phosphine oxide as a preligand for nickel-catalyzed C-S cross-coupling reactions

A new bidentate secondary phosphine oxide (SPO) was synthesized from diphenyl ether via ortho-lithiation, phosphorylation with PhP(Cl)NEt2, and hydrolysis in an acidic medium. Nickel(0) species ligated with this new SPO was established as a mor

Synthesis of unsymmetrically substituted phosphane oxides (R 1R2P(O)H) and phosphinous acids (R1R 2POH)

This paper describes the synthesis of unsymmetrically substituted phosphinous acids and phosphane oxides featuring at least one electron-withdrawing pentafluoroethyl group. The presence of a diethylamino function as a protecting group allows a selective reaction of RClPNEt 2 (R=CF3, C6F5, C6H 5) with LiC2F5. On treatment with para-toluenesulfonic acid the isolated aminophosphanes R(C2F 5)PNEt2 are readily converted into the corresponding phosphinous acids or phosphane oxides, respectively. Investigation of the tautomeric equilibrium between oxide and acid tautomer revealed (CF 3)(C2F5)POH as a stable phosphinous acid, whereas the pentafluorophenyl and phenyl derivatives constitute a solvent dependent equilibrium between the acid and the oxide tautomer.

OLIGOMERISATION OF ETHYLENE TO MIXTURES OF 1-HEXENE AND 1-OCTENE

A process for the otigomerisation of ethylene to predominantly 1-hexene or 1-octene or mixtures of 1-hexene and 1-octene includes contacting ethylene with a catalyst under ethylene oligomerisation conditions. The catalyst comprises a source of chromium, a diphosphine ligating compound, and optionally an activator. The diphosphine ligating compound includes at least one optionally substituted fused cyclic structure including at least two rings, the optionally substituted fused cyclic structure including a 5- to 7- membered aromatic first ring bonded to a phosphorus atom, the aromatic first ring being fused to a 4- to 8-membered heterocyclic second ring, the heterocyclic second ring including a heteroatom which is separated by two ring atoms along the shortest connecting path from the phosphorous atom that is bonded to the first aromatic ring.

Base-free production of H2 by dehydrogenation of formic acid using an iridium-bisMETAMORPhos complex

Erase the base: An iridium complex based on a cooperative ligand that functions as an internal base is reported. This complex can rapidly and cleanly dehydrogenate formic acid in absence of external base, a reaction that is required if formic acid is to be exploited as an energy carrier (see scheme). Copyright

METHODS FOR OLIGOMERIZING OLEFINS WITH CHROMIUM PYRIDINE PHOSPHINO CATALYSTS

The present invention provides a method of producing oligomers of olefins, comprising reacting olefins with a catalyst under oligomerization conditions. The catalyst can be the product of the combination of a chromium compound and a pyridyl phosphino comp