124070-81-1

Basic information

• Product Name: (Di-tert-butyl-fluorsilyl-2,4,6-trimethyl-phenyl)phosphan
• CAS NO: 124070-81-1
• Molecular Weight: 312.483
• Mol File: 124070-81-1.mol

Chemical Properties

• CAS DataBase Reference: (Di-tert-butyl-fluorsilyl-2,4,6-trimethyl-phenyl)phosphan(CAS DataBase Reference)
• NIST Chemistry Reference: (Di-tert-butyl-fluorsilyl-2,4,6-trimethyl-phenyl)phosphan(124070-81-1)
• EPA Substance Registry System: (Di-tert-butyl-fluorsilyl-2,4,6-trimethyl-phenyl)phosphan(124070-81-1)

Safety Data

• Hazardous Substances Data: 124070-81-1(Hazardous Substances Data)

Upstream product

• 558-63-4 di-tert-butyldifluorosilane 
• 89634-37-7 lithium 2,4,6-trimethylphenylhydrophosphanide 

Downstream Products

• 124070-82-2 C₃₄H₅₈F₂Na₂P₂Si₂*4C₄H₈O 
• 124070-83-3 C₃₄H₅₈F₂K₂P₂Si₂*4C₄H₈O 

Relevant articles and documents

SYNTHESEN UND KRISTALLSTRUKTUREN DER LITHIERTEN SILYLPHOSPHANE (CMe3)2SiFP(Mes)Li(THF)3, (CMe3)2SiFLi(TMEDA)PMes UND DES CYCLISCHEN SILYLPHOSPHANES 2

Di-tert-butyldifluorosilane reacts with lithiated 2,4,6-trimethylphenylphosphane to give (CMe3)2SiFPHC6H2Me3 (1).A lithium derivative is formed in the reaction of 1 with nC4H9Li.The crystal structures of the lithium derivatives (CMe3)2SiFP(C6H2Me3)Li(THF)3 (2) and (CMe3)2SiFLi(TMEDA)PC6H2Me3 (3) were determined.The phosphorus atom is planar in 2 and pyramidal in 3.A (SiPLiF)-four-membered ring is formed in 3.LiF-elimination leads to the formation of the (SiP)-four-membered ring (4).The ring system of 4 is completely asymmetrical, indicating that the steric limits of the dimerisation of the intermediate silaphosphene have been reached.Both 2 and 3 react with CMe3SiF3 to give the substituted compound (CMe3)2SiFP(SiF2CMe3)C6H2Me3 (5).