257290-46-3

Basic information

• Product Name: 2-((2-OMe-Ph)2P)-4-Me-benzenesulfonic acid
• Synonyms: 2-((2-OMe-Ph)2P)-4-Me-benzenesulfonic acid
• CAS NO: 257290-46-3
• Molecular Weight: 416.435
• Mol File: 257290-46-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2-((2-OMe-Ph)2P)-4-Me-benzenesulfonic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 2-((2-OMe-Ph)2P)-4-Me-benzenesulfonic acid(257290-46-3)
• EPA Substance Registry System: 2-((2-OMe-Ph)2P)-4-Me-benzenesulfonic acid(257290-46-3)

Safety Data

• Hazardous Substances Data: 257290-46-3(Hazardous Substances Data)

Upstream product

• 578-57-4 2-bromoanisole 
• 104-15-4 toluene-4-sulfonic acid 
• 263369-88-6 di-o-anisylphosphinyl chloride 

Downstream Products

• 1001660-60-1 [(2-((2-OMe-Ph)2P)-4-Me-benzenesulfonate)Pd(pyridine)(CH₂-t-Bu)] 
• 2138-72-9 N-[tris(pentafluorophenyl)borane]-pyridine 
• 1001660-75-8 [(2-((2-OMe-Ph)2P)-4-Me-benzenesulfonate)Pd(CH₂-t-Bu)]2 
• 1001660-77-0 [(2-((2-OMe-Ph)2P)-4-Me-benzenesulfonate)Pd(η3-CH2Ph)] 
• 946055-60-3 (2-[bis(2-methoxyphenyl)phosphino]-4-methyl-benzenesulfonate)PdMe(pyridine) 
• 1001660-58-7 [(2-((2-OMe-Ph)2P)-4-Me-benzenesulfonate)Pd(pyridine)(CH₂SiMe₃)] 
• 1001660-69-0 [(2-((2-OMe-Ph)2P)-4-Me-benzenesulfonate)Pd(PPh₃)(Me)] 
• 1001660-64-5 [(2-((2-OMe-Ph)2P)-4-Me-benzenesulfonate)Pd(CH₃)(pyridazine)] 

Relevant articles and documents

Copolymerization of ethylene and alkyl vinyl ethers by a (Phosphinesulfonate)PdMe catalyst

The neutral complex (PO-OMe)PdMe(py) (1, PO-OMe = 2-[bis(2-OMe-Ph)phosphino]-4-methylbenzenesulfonate) polymerizes ethylene to a linear polymer with 1-10 branches/103 carbons (mostly methyl) and vinyl and 2-olefin unsaturated end groups. Complex 1 copolymerizes ethylene and alkyl vinyl ethers (CH2=CHOR, 2a-c: R = tBu (a), Et (b), Bu (c)) in toluene at 60-100 °C to linear copolymers containing up to 7 mol % of vinyl ether. Addition of CH2=CHOR lowers the polymerization rate and the polymer molecular weight. The copolymer structures are similar to that of homopolyethylene generated under the same conditions. The major comonomer units are -CH2CH(OR)CH2- (I) and CH3CH(OR)CH2- (II). The ethylene/CH2CHOR copolymers can be converted to hydroxy- and bromo-polyethylene. The results of control experiments argue against cationic and radical mechanisms for the copolymerization, and an insertion mechanism is proposed. The reaction of base-free (PO-OMe)PdMe with CH2CHOEt yields the adduct (PO-OMe)PdMe(CH2=CHOEt), which undergoes 1,2-insertion to generate (PO-OMe)PdCH2CH(OEt)Me. Copyright