102632-49-5

Upstream product

• 4518-98-3 1,1,2,2-tetrachloro-1,2-dimethyldisilane 
• 21289-08-7 1,4-dilithio-1,2,3,4-tetraphenylbutadiene 
• 16030-08-3 1-chloro-1-methyl-2,3,4,5-tetraphenyl-1-silacyclopentadiene 
• 501-65-5 diphenyl acetylene 

Downstream Products

• 190966-64-4 [(MeSiC₄Ph₄Me)2] 
• 102649-09-2 11,11'-Dimethyl-1,8,9,10,1',8',9',10'-octaphenyl-[11,11']bi[11-sila-tricyclo[6.2.1.0^2,7]undecyl]-2⁽⁷⁾,3,5,9,2'(7'),3',5',9'-octaene 

Relevant academic research and scientific papers

Synthesis of 1,10-bis(1-methyl/chloro-2,3,4,5-tetraphenyl-1-silacyclopentadienyl) [Ph4C4Si(Me/Cl)-(Me/Cl)SiC4PH4] from silole anion [MeSiC4Ph4]??[Li+ or Na+] and silole dianion [SiC4Ph4]2??

A reaction of silole anion {[MeSiC4Ph4]??[Li+ or Na+] (1) with anhydrous ferrous chloride (FeCl2) in THF (tetrahydrofuran) gives 1,10-bis(1-methyl-2,3,4,5-tetraphenyl-1-silacyclo

PREPARATION AND REACTION OF A DISILYNE SYNTHON, 7,7'-BIS(7-METHYL-1,4,5,6-TETRAPHENYL-7-SILA-2,3-BENZO-NORBORNADIENE)

The title compound (2) was prepared by condensing a bis(silole) 1 with benzyne.Thermolysis of 2 in the presence of anthracene, 9,10-dimethylanthracene (DMA), 2,3-dimethylbutadiene, and two acetylenes is described in detail.X-ray structures for the anthrac

Dissociation of the disilatricyclic diallylic dianion [(C 4Ph4SiMe)2]-2 to the silole anion [MeSiC4Ph4]- by halide ion coordination or halide ion nucleophilic substitution at the silicon atom

The reductive cleavage of the Si-Si bond in 1,1-bis(1-methyl-2,3,4,5- tetraphenyl-1-silacyclopentadiene) [(C4Ph4SiMe) 2] (1) with either Li or Na in THF gives the silole anion [MeSiC 4Ph4]- (2). The head-to-tail dimerization of the silole anion 2 gives crystals of the disilatricyclic diallylic dianion [(C4Ph4SiMe)2]-2 (3). The derivatization of 3 (crystals) with bromoethane (gas) under reduced pressure provides [(MeSiC4Ph4Et)2] (4) quantitatively. The reverse addition of 3 in THF to trimethylsilyl chloride, hydrogen chloride, and bromoethane in THF gives 1-methyl-1-trimethylsilyl-1-silole [Me 3SiMeSiC4Ph4] (6), 1-methyl-2,3,4,5- tetraphenyl-1-silacyclo-3-pentenyl-1-methyl-1-silole [C4Ph 4H2SiMe-MeSiC4Ph4] (7), and 1-methyl-2,5-diethyl-2,3,4,5-tetraphenyl-1-silacyclo-3-pentenyl-1-methyl-1- silole [C4Ph4Et2SiMe-MeSiC4Ph 4] (8), respectively. The reaction products unambiguously suggest that the silole anion [MeSiC4Ph4]- is generated by coordination of the chloride ion at the silicon atom in 3 or by the nucleophilic substitution of either chloride or bromide ion at one of two silicon atoms in 3. The quenching reaction of 3 dissolved in THF with water gives 1,2,3,4-tetraphenyl-2-butene, the disiloxane of 1-methyl-2,3,4,5- tetraphenyl-1-silacyclo-3-pentenyl [O(MeSiC4Ph4) 2] (10) and methyl silicate.