259541-67-8

Basic information

• Product Name: 2,6-dimethoxyphenylphosphirane
• Synonyms: 2,6-dimethoxyphenylphosphirane
• CAS NO: 259541-67-8
• Molecular Weight: 196.186
• Mol File: 259541-67-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2,6-dimethoxyphenylphosphirane(CAS DataBase Reference)
• NIST Chemistry Reference: 2,6-dimethoxyphenylphosphirane(259541-67-8)
• EPA Substance Registry System: 2,6-dimethoxyphenylphosphirane(259541-67-8)

Safety Data

• Hazardous Substances Data: 259541-67-8(Hazardous Substances Data)

Upstream product

• 6315-52-2 1,2-bis-tosyloxyethane 
• 126590-36-1 2,6-(dimethoxyphenyl)phosphine 

Downstream Products

• 252769-98-5 2,6-dimethoxyphenylphosphirane oxide 
• 252769-99-6 2,6-dimethoxyphenylphosphirane sulfide 

Relevant articles and documents

2,6-Dimethoxyphenylphosphirane oxide and sulfide and their thermolysis to phosphinidene chalcogenides - Kinetic and mechanistic studies

2,6-Dimethoxyphenylphosphirane is readily converted to its oxide and sulfide whose pyrolysis and (perhaps) photolysis lead to the generation of phosphinidene chalcogenides Ar-P=Z (Z=O,S). Trapping experiments were carried out under conditions similar to the kinetic studies of the phosphirane chalcogenide pyrolyses that confirmed the formation of free Ar-P=Z. The trapping experiments were in accord with carbene-like character for Ar-P=Z, and the activation parameters suggest a non-least motion pathway for the addition of Ar-P=Z to olefins. This represents quantitative evidence for the validity of the predictions of frontier-orbital theory for species that undergo reactions with small (or no) enthalpic barriers.