78752-28-0

Upstream product

• 68260-16-2 C₂₂H₃₇ISi₄ 
• 77548-00-6 methyldiphenyl[(dimethylsilyl)bis(trimethylsilyl)methyl]silane 

Downstream Products

• 68260-19-5 C₂₄H₄₀O₂Si₄ 
• 131531-19-6 (methyldiphenylsilyl)bis(trimethylsilyl)methane 
• 90284-48-3 (dimethyltrifluoroacetoxysilyl)(methyldiphenylsilyl)bis(trimethylsilyl)methane 
• 70590-04-4 dimethylnitratosilyl(methyldiphenylsilyl)bis(trimethylsilyl)methane 
• 77547-99-0 Dimethyl-[(methyl-diphenyl-silanyl)-bis-trimethylsilanyl-methyl]-silanol 

Relevant academic research and scientific papers

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

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).

Photo-induced Reactions of an Organosilicon Iodide

The results of u.v. irradiation of (Me3Si)3CSiPh2I in MeOH, n-C6H14, CCl4, Et2O, and PhOMe are interpreted in terms of the formation of cationic as well as free-radical organosilicon intermediates.