90284-48-3

Upstream product

• 68260-16-2 C₂₂H₃₇ISi₄ 
• 76-05-1 trifluoroacetic acid 
• 212064-80-7 C₂₂H₃₈Si₄ 
• 115764-86-8 [(Chloro-bis-trimethylsilanyl-methyl)-dimethyl-silanyl]-benzene 
• 2966-50-9 silver trifluoroacetate 
• 212064-82-9 C₂₂H₃₇BrSi₄ 
• 78752-28-0 (iododimethylsilyl)bis(trimethylsilyl)(methyldiphenylsilyl)methane 

Relevant academic research and scientific papers

1,3-Migration of a phenyl group in the conversion of (Me3Si)2(PhMe2Si)CSiMePhX into (Me3Si)2(Ph2MeSi)CSiMe2Y species

The finding that compounds of the type (Me3Si)2(PhMe2Si)CSiMePhX react with electrophiles to give very predominantly rearranged products (Me3Si)2(Ph2MeSi)CSiMe2Y, which would be

Anchimeric assistance in the reactions of the crowded organosilicon iodide (Me3Si)2(Ph2MeSi)CSiMe2I with electrophiles

The relative reactivities of the iodides (Me3Si)2(Ph2MeSi)CSiMe2I, 1, (Me3Si)2(PhMe2Si)CSiMe2I, 2, (Me3Si)3CSiPhMeI 3, (Me3Si)3CSiPh2I, 4, and (Me3Si)3CSiMe2I, 5, towards silver salts or ICl have been studied and the results support the proposal that for

CLEAVAGES OF SILICON-CARBON BONDS IN TRIS(TRIMETHYLSILYL)METHYLSILICON COMPOUNDS BY TRIFLUOROACETIC ACID. REARRANGEMENTS AND ANCHIMERIC ASSISTANCE

The fairly high rate of the highly sterically hindered compound (Me3Si)3CSiMe2Ph with CF3CO2H is consistent with the view that the rate-determining step involves the transfer of a proton from the acid to the ipso-carbon atom of the ring.The formation of the rearranged species (Me3Si)2C(SiMe2F)(SiMe2O2CCF3) in the reaction of (Me3Si)3CSiPhMeF with CF3CO2H suggests that the leaving of benzene from the initial protonated species generates a methyl-bridged silicon cation.Treatment of (Me3Si)3CSiPhMel with AgO2CCF3-CF3CO2H gives the rearranged (Me3Si)2C(SiPhMe2)(SiMe2O2CCF3), which reacts with CF3CO2H under reflux to give (Me3Si)2C(SiMe2O2CCF3)2.In remarkable example of anchimeric assistance by a γ-OMe group the compound (Me3Si)3CSiMe2OMe reacts readily with CF3CO2H at room temperature with evolution of methane, and formation finally of (Me3Si)2C(SiMe2O2CCF3)2, apparently via (Me3Si)2C(SiMe2OMe)(SiMe2O2CCF3).Sulphuric acid reacts very vigorously with (Me3Si)3CSiMe2OMe, and hydrolysis of the initial product gives the diol (Me3Si)3C(SiMe2OH)2.This diol can also be obtained by hydrolysis of (Me3Si)2C(SiMe2O2CCF3)2.