55818-45-6

Basic information

• Product Name: methyltriphenylphosphonium 4-methylbenzenesulfonate
• Synonyms: methyltriphenylphosphonium 4-methylbenzenesulfonate
• CAS NO: 55818-45-6
• Molecular Weight: 448.522
• Mol File: 55818-45-6.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: methyltriphenylphosphonium 4-methylbenzenesulfonate(CAS DataBase Reference)
• NIST Chemistry Reference: methyltriphenylphosphonium 4-methylbenzenesulfonate(55818-45-6)
• EPA Substance Registry System: methyltriphenylphosphonium 4-methylbenzenesulfonate(55818-45-6)

Safety Data

• Hazardous Substances Data: 55818-45-6(Hazardous Substances Data)

Upstream product

• 67-56-1 methanol 
• 104-15-4 toluene-4-sulfonic acid 
• 603-35-0 triphenylphosphine 
• 149-73-5 trimethyl orthoformate 
• 80-48-8 methyl p-toluene sulfonate 

Downstream Products

• 1631-28-3 N-p-tolylphenylmaleimide 

Relevant articles and documents

Aluminum triflate as a highly active and efficient nonprotic cocatalyst in the palladium-catalyzed methoxycarbonylation reaction

(Chemical Equation Presented) Lewis does it better: Aluminum triflate readily replaces Bronsted acid cocatalysts in the palladium-catalyzed methoxycarbonylation reaction of styrene and 1-pentene, producing catalysts that are stable and more active than those using traditional acids. Catalyst loadings of 0.02% allow conversions of up to 100% to be achieved within three hours with no loss of linear/branched ester selectivity.

Practical synthesis of phosphonium salts with orthoformates and their application as flame retardants in polycarbonate

An efficient and practical approach to phosphonium salts has been developed. By the reaction of phosphines and different acid sources with orthoformates in one-step operation, the process allowed rapid access to phosphonium salts with diverse counterions in high yield after the purification by recrystallization. The flame retardant performance in PC has also been examined by blending several phosphonium salts to PC respectively. Phosphonium phosphates showed excellent flame retardancy in PC with only 2 phr blending.