Chemical Property of Silane, 1,1'-(1-propyne-1,3-diyl)bis[1,1,1-tris(1-methylethyl)-
Chemical Property:
- PSA:0.00000
- LogP:7.88660
- Solubility.:both the reagent and its lithio derivative are soluble in
ether or THF.
- Purity/Quality:
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85.0-99.8% *data from raw suppliers
Safty Information:
- Pictogram(s):
- Hazard Codes:
- MSDS Files:
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SDS file from LookChem
Useful:
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Physical properties
bp 130–135°C/0.08 mmHg; d 0.846 g cm?3.
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Uses
1,3-Bis(triisopropylsilyl)propyne is a precursor of a stereoselective bulky C3 nucleophile, functionalized
Peterson reagent.The main use of the title reagent is as a precursor of the
lithium derivative. 1,3-Bis(triisopropylsilyl)propyne is cleanly
lithiated by treatment with equiv of n-butyllithium in THF at
?20°C (15 min) to what is probably an equilibrium mixture of
propargylic and allenic species (1) and (2) (eq 1).The bulky
triisopropylsilyl (TIPS) group serves as a controlling group in the
addition of (1/2) to electrophiles.