78465-74-4

Basic information

• Product Name: (C₆H₅)3PNP(C₆H₅)3⁽¹⁺⁾*(CO)4FeSi(CH₃)3^(1-)=(C₆H₅)3PNP(C₆H₅)3[(CO)4FeSi(CH₃)3]
• Synonyms: (C₆H₅)3PNP(C₆H₅)3⁽¹⁺⁾*(CO)4FeSi(CH₃)3^(1-)=(C₆H₅)3PNP(C₆H₅)3[(CO)4FeSi(CH₃)3]
• CAS NO: 78465-74-4
• Molecular Weight: 779.667
• Mol File: 78465-74-4.mol

Chemical Properties

• CAS DataBase Reference: (C₆H₅)3PNP(C₆H₅)3⁽¹⁺⁾*(CO)4FeSi(CH₃)3^(1-)=(C₆H₅)3PNP(C₆H₅)3[(CO)4FeSi(CH₃)3](CAS DataBase Reference)
• NIST Chemistry Reference: (C₆H₅)3PNP(C₆H₅)3⁽¹⁺⁾*(CO)4FeSi(CH₃)3^(1-)=(C₆H₅)3PNP(C₆H₅)3[(CO)4FeSi(CH₃)3](78465-74-4)
• EPA Substance Registry System: (C₆H₅)3PNP(C₆H₅)3⁽¹⁺⁾*(CO)4FeSi(CH₃)3^(1-)=(C₆H₅)3PNP(C₆H₅)3[(CO)4FeSi(CH₃)3](78465-74-4)

Safety Data

• Hazardous Substances Data: 78465-74-4(Hazardous Substances Data)

Upstream product

• 21050-13-5 bis(triphenylphosphine)iminium chloride 
• 78240-74-1 K⁽¹⁺⁾*(CO)4FeSi(CH₃)3^(1-)=K[(CO)4FeSi(CH₃)3] 

Downstream Products

• 71564-37-9 dihydridotetracarbonyliron 
• 993-07-7 trimethylsilan 
• 63022-27-5 (CO)4FeH(Si(CH₃)3) 

Relevant articles and documents

Syntheses of iron carbonyl trimethylsilanes: Preparations and interconversions of cis-(CO)4Fe[Si(CH3)3]2, M+[(CO)4FeSi(CH3)3]-, and trans-[-Fe(CO)4Si(CH3)3]2

Reaction of petroleum ether slurries of M2Fe(CO)4 (M = Na, K) with (CH3)3SiBr results in ca. 50% yields of cis-(CO)4Fe[Si(CH3)3]2 (1). When K2Fe(CO)4 is reacted with (CH3)3SiBr for 0.5 h in THF, fair yields of K+[(CO)4FeSi(CH3)3]- (2a) are obtained. Reaction of (CO)4Fe(H)Si(CH3)3 with KH and NaH affords 2a (90%) and Na+[(CO)4FeSi(CH3)3]- (2c; 68%), respectively. Both 2a and 2c are oxidized by C7H7+PF6- to the labile binuclear complex trans-[-Fe(CO)4Si(CH3)3]2 (3). Complex 3 can be independently generated from 1 and benzaldehyde and is reduced by Na/Hg to 2c. Other reactions and interconversions of these silanes are described. Some earlier unsuccessful attempts to prepare 1 by related routes are discussed.