2060-91-5

Upstream product

• 75-77-4 chloro-trimethyl-silane 
• 576-83-0 2,4,6-trimethylphenyl bromide 
• 79184-72-8 2,2-dimesitylhexamethyltrisilane 
• 6108-61-8 cis,cis-2,4-Hexadien 
• 513-81-5 2,3-dimethyl-buta-1,3-diene 
• 78-79-5 isoprene 
• 1450-14-2 1,1,1,2,2,2-hexamethyldisilane 
• 111655-80-2 dimesitylbis(trimethylsilyl)germane 
• 627-20-3 (Z)-pent-2-ene 
• 5194-51-4 (2E,4E)-hexa-2,4-diene 

Downstream Products

• 1066-40-6 Trimethylsilanol 
• 999-97-3 1,1,1,3,3,3-hexamethyl-disilazane 
• 108-67-8 1,3,5-trimethyl-benzene 
• 139139-80-3 bis(2,4,6-trimethylphenyl)iodonium triflate 

Relevant academic research and scientific papers

Steady-state photolysis of dimesitylbis(trimethylsilyl)germane

The photolysis of dimesitylbis(trimethylsilyl)germane (3) in hexanes or THF, at low temperature, has been investigated as a potential method for the preparative-scale synthesis of tetramesityldigermene (5). A product mixture, consisting of hexamethyldisilane, mesitylene, 2-trimethylsilylmesitylene (7), a new germacyclobutene (8), and an unidentified polymer, was obtained. No evidence for the formation of tetramesityldigermene (5) was observed.

A novel type of nucleophilic substitution reactions on nonactivated aromatic compounds and benzene itself with trimethylsiliconide anions.

[reaction: see text]. The reaction of fluorobenzene with Me3Si- anion (1) in HMPA at room temperature surprisingly affords o- and p-fluorotrimethylsilylbenzenes (substitution of aromatic H for TMS, 76% yield) 7a and 7b and also 14% of trimethylsilylbenzene (2). Benzene itself reacts at 50 degrees C to furnish 4 in 45% yield. Pyridine affords p-trimethylsilylpyridine quantitatively. Mechanistic studies are presented.

Stable 2-Vinylsiliranes

Seven 2-vinyl-1,1-dimesitylsiliranes, stable at room temperature over months, have been synthesized from the addition of dimesitylsilylene to 2,3-dimethylbutadiene, 2-methylbutadiene, trans,trans-2,4-hexadiene, cis,cis-2,4-hexadiene, and cis,trans-2,4-hex

Addition of Dimesitylsilylene to Olefins. A Reinvestigation

We have reinvestigated the report that dimesitylsilylene adds nonstereospecifically to cis- and trans-2-butene. Stereospecific addition of dimesitylsilylene to cis- and trans-2-pentenes and -4-octenes produced the corresponding siliranes. A photoisomerization pathway is also reported for these siliranes. A probable explanation for the earlier and spurious interpretation is given.