77657-09-1

Upstream product

• 125364-58-1 (dimethylphenylsilyl)(dimethylsilyl)bis(trimethylsilyl)methane 
• 70590-00-0 [Iodo-methyl-(tris-trimethylsilanyl-methyl)-silanyl]-benzene 
• 768-33-2 phenyldimethylsilyl chloride 
• 108-86-1 bromobenzene 
• 115764-86-8 [(Chloro-bis-trimethylsilanyl-methyl)-dimethyl-silanyl]-benzene 
• 454-57-9 fluorodimethylphenylsilane 
• 15951-41-4 bis(trimethylsilyl)dichloromethane 

Downstream Products

• 125364-67-2 ({[Dimethyl-(2,2,2-trifluoro-ethoxy)-silanyl]-bis-trimethylsilanyl-methyl}-dimethyl-silanyl)-benzene 
• 141868-87-3 C₁₈H₃₅NSSi₄ 
• 83622-72-4 (hydroxydimethylsilyl)bis(trimethylsilyl)methane 
• 90284-50-7 (phenyldimethylsilyl)(dimethyltrifluoroacetoxysilyl)bis(trimethylsilyl)methane 
• 141868-82-8 {[(Methoxy-dimethyl-silanyl)-bis-trimethylsilanyl-methyl]-dimethyl-silanyl}-benzene 

Relevant academic research and scientific papers

Preparation of the iodides (Me3Si)2C(SiMe2C6H4Y)(SiMe2I) and some related compounds

The preparations of: (a) the iodides (Me3Si)2C(SiMe2C6H4Y)(SiMe2I) (Y=H, p-OMe, p-Me, p-Cl, m-CF3), via the corresponding hydrides; (b) the compounds (Me3Si)2C(SiMe2Ph)(SiMe2X) with X=F, O2CCF3, OMe, N3, NCS and Cl: and (c) the iodide (p-MeC6H4)3CSiMe2I are described. Key words: Silicon; Iodide; Fluoride; Hydride; Trimethylsilyl

Anchimeric Assistance by γ-Aryl Groups in Solvolysis of Organosilicon Iodides. Some Remarkably Large Remote Substituent Effects

The very large spread of rates in reactions of the iodides (Me3Si)2C(SiMe2C6H4X)(SiMe2I) (X = p-OMe, p-Me, H, p-Cl, or m-CF3) with (CF3)2CHOH and CF3CH2OH (the compound with X = p-OMe is 1.9E05 and 6.5E04 times, respectively, as reactive as that with X = m-CF3) is attributed to nucleophilic assistance by the aryl group to the leaving of the I- ion.

Photoinduced Ionic and Free-radical Reactions of Some Organosilicon Iodides

U.v. irradiation (medium-pressure Hg lamp) induces reaction of TsiSiPh2I (1a) 3Si)3C> with methanol to give both the unrearranged and rearranged methoxides TsiSiPh2OMe and (Me3Si)2C(SiPh2Me)(SiMe2OMe); in the presence of LiNO3 some (Me3Si)2C(SiPh2Me)(SiMe2ONO2) is also formed.The analogous solvolysis in PhNH2 gives the rearranged anilide (Me3Si)2C(SiPh2Me)(SiMe2NHPh).These reactions are thought to involve the intermediate formation of a silico-cation.On the other hand the exclusive formation of the unrearranged chloride TsiSiPh2Cl upon irradiation in CCl4 appears to involve a free-radical process.The photoinduced rearrangement of (1a) to (Me3Si)2C(SiPh2Me)(SiMe2I) in n-C5H12, n-C6H14, Et2O, and PhOMe may involve a cationic intermediate, but a free radical rearrangement cannot be ruled out; the subsequent formation of a disilaindane derivative (6) in PhOMe probably involves cyclization of a free radical.The iodide TsiSiPhMeI also undergoes rearrangement to (Me3Si)2C(SiPhMe2)(SiMe2I) upon irradiation in n-C5H12.The methanolysis of TsiSiMe2I is also photo-catalysed, though less effectively than that of (1a).

PYROLYSIS OF THE "TRISYL" COMPOUNDS (Me3Si)CSiPh2I AND (Me3Si)3CSiPhMeI

The compounds (Me3Si)3CSiPh2I and (Me3Si)3CSiPhMeI have been shown to decompose on heating with formation of various 1,3-disilaindane derivatives, probably via free radical intermediates.