675623-69-5

Basic information

• Product Name: m-C₆H₄(CH₂(cyclohexyl)2PNSiMe₃)2
• CAS NO: 675623-69-5
• Molecular Weight: 673.106
• Mol File: 675623-69-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: m-C₆H₄(CH₂(cyclohexyl)2PNSiMe₃)2(CAS DataBase Reference)
• NIST Chemistry Reference: m-C₆H₄(CH₂(cyclohexyl)2PNSiMe₃)2(675623-69-5)
• EPA Substance Registry System: m-C₆H₄(CH₂(cyclohexyl)2PNSiMe₃)2(675623-69-5)

Safety Data

• Hazardous Substances Data: 675623-69-5(Hazardous Substances Data)

Upstream product

• 626-15-3 1,3-bis-(bromomethyl)benzene 
• 19966-81-5 lithium dicyclohexylphosphide 
• 829-84-5 dicyclohexylphosphane 
• 4648-54-8 trimethylsilylazide 
• 161868-97-9 1,3-bis(dicyclohexylphosphinomethyl)benzene 

Downstream Products

• 675623-78-6 [(m-C₆H₄(CH₂(cyclohexyl)2PN)2)TiCl₂] 
• 675623-71-9 m-C₆H₄(CH₂(cyclohexyl)2PNH)2 

Relevant articles and documents

Ti and Zr bidentate bis-phosphinimide complexes

The diphosphines m-C6H4(CH2Pt-Bu2)2 1 and m-C6H4(CH2PCy2)2 2 were prepared and oxidized with Me3SiN3 to m-C6H4(CH2(t-Bu2)PNSiMe3) 2 3 and m-C6H4(CH2(Cy2) PNSiMe3)2 4, and subsequently converted to m-C6H4(CH2-(t-Bu)2PNH)2 5 and m-C6H4(CH2(Cy)2PNH)2 6. Reaction of 5 and 6 with Ti(NMe2)4 afforded the yellow compounds m-C6H4(CH2(t-Bu)2 PN)2Ti(NMe2)2 7 and m-C6H4(CH2(Cy)2PN)2 Ti(NMe2)2 8, and the low abundance by-product m-C6H4(CH2(t-Bu)2PN)2TiBr (NMe2) 9. In a similar manner, the species m-C6H4(CH2(t-Bu)2PN)2Zr(N Et2)2 10 was prepared from Zr(NEt2)4. Compounds 8, 9 and 10 were converted to C6H4(CH2(t-Bu)2PN)2 TiBr2 11, m-C6H4(CH2-(Cy)2PN)2 TiCl2 13 and C6H4(CH2(t-Bu)2PN)2 ZrCl2 14 via reaction with Me3SiX (X = Br, Cl). Alternatively, m-C6H4(CH2 (t-Bu)2PN)2TiCl2 12 and 13 were prepared in low yield from reaction of 3 or 4 with TiCl4. Alkylation of 11 with MeMgBr and PhCH2MgBr proceeded to give m-C6H4(CH2(t-Bu)2PN)2 TiMe2 15 and m-C6H4(CH2- (t-Bu)2PN)2Ti(CH2Ph)2 16, respectively. The species (m-C6H4(CH2 (t-Bu)2PN)2)2Zr 17 was prepared from Zr(CH2Ph)4. These synthetic routes are described and the implications for applications in olefin polymerization catalysis are considered. X-Ray structural data for compounds 1, 3, 4, 5, 8, 9 and 16 are reported.