60692-86-6

Basic information

• Product Name: 4-tert.-Butylphenyl-(bis-diethylamino)-phosphin
• CAS NO: 60692-86-6
• Molecular Weight: 308.447
• Mol File: 60692-86-6.mol

Chemical Properties

• CAS DataBase Reference: 4-tert.-Butylphenyl-(bis-diethylamino)-phosphin(CAS DataBase Reference)
• NIST Chemistry Reference: 4-tert.-Butylphenyl-(bis-diethylamino)-phosphin(60692-86-6)
• EPA Substance Registry System: 4-tert.-Butylphenyl-(bis-diethylamino)-phosphin(60692-86-6)

Safety Data

• Hazardous Substances Data: 60692-86-6(Hazardous Substances Data)

Upstream product

• 685-83-6 bis(diethylamino)chlorophosphine 
• 3972-65-4 1-bromo-4-tert-butylbenzene 

Downstream Products

• 1615710-15-0 C₃₂H₄₅O₆P₃ 
• 1615710-18-3 C₃₀H₄₁O₆P₃ 
• 1615710-20-7 C₃₁H₄₄ClO₆P₃Pd 
• 60692-79-7 (4-(tert-butyl)phenyl)dichlorophosphine 

Relevant articles and documents

Ring-Opening Polymerization of Cyclic Phosphonates: Access to Inorganic Polymers with a PV-O Main Chain

We describe a new class of inorganic polymeric materials featuring a main chain consisting of PV-O bonds and aryl side groups, which was obtained with >70 repeat units by ring-opening polymerization of cyclic phosphonates. This monomer-polymer system was found to be dynamic in solution enabling selective depolymerization under dilute conditions, which can be tuned by varying the substituents. The polymers show high thermal stability to weight loss and can be easily fabricated into self-standing thin films. Structural characterizations of the cyclic 6-and 12-membered ring precursors are also described.

Copolymerization of ethylene and methyl acrylate by cationic palladium catalysts that contain phosphine-diethyl phosphonate ancillary ligands

A series of benzo-linked phosphine-diethyl phosphonate (P-PO) and phosphine-bis(diethyl phosphonate) (P-(PO)2) ligands and the corresponding (P-PO)PdMe(2,6-lutidine)+ and (P-(PO) 2)PdMe(2,6-lutidine)+ complexes were synthesized. Cationic (P-PO)PdMe(2,6-lutidine)+ complexes are active for ethylene oligomerization/polymerization, with activities of 2 kg mol-1 h -1 for {κ2-1-PiPr2-2-P(O)(OEt) 2-5-Me-Ph}PdMe(2,6-lutidine)+ (3c), 125 kg mol -1 h-1 for {κ2-1-PPh2-2-P(O) (OEt)2-5-Me-Ph}PdMe(2,6-lutidine)+ (3a), and 1470 kg mol-1 h-1 for {κ2-1-P(2-OMe-Ph) 2-2-P(O)(OEt)2-Ph}PdMe(2,6-lutidine)+ (3b). The polyethylene is highly linear, with over 80% terminal unsaturation and low (230-1890 Da) molecular weight in all cases. 3b copolymerizes ethylene with methyl acrylate, exhibiting highly selective (95%) in-chain (rather than chain-end) acrylate incorporation. The P-(PO)2 catalyst {κ2-1-P(4-tBu-Ph)(2-P(O)(OEt)2-5-Me-Ph)- 2-P(O)(OEt)2-5-Me-Ph}PdMe(2,6-lutidine)+ (3d) is more active for ethylene homopolymerization (2640 kg mol-1 h -1), yielding linear, low-molecular-weight polymer (1280-1430 Da) with predominantly internal olefin placement. In ethylene/methyl acrylate copolymerization, 3d incorporates 2.6 mol % methyl acrylate, 60% of which is in-chain. Both 3b and 3d catalyze ethylene/acrylic acid copolymerization, albeit with low (-1 h-1) activities and acrylic acid incorporation up to 1.1 mol %.