ChemicalBook >> CAS DataBase List >>Silane, 1,1'-(1-propyne-1,3-diyl)bis[1,1,1-tris(1-methylethyl)-
Silane, 1,1'-(1-propyne-1,3-diyl)bis[1,1,1-tris(1-methylethyl)-
- CAS No.
- 82192-59-4
- Chemical Name:
- Silane, 1,1'-(1-propyne-1,3-diyl)bis[1,1,1-tris(1-methylethyl)-
- Synonyms
- 1,3-Bis(triisopropylsilyl)propyne;Silane, 1-propyne-1,3-diylbis[tris(1-methylethyl)-;Silane, 1,1'-(1-propyne-1,3-diyl)bis[1,1,1-tris(1-methylethyl)-
- CBNumber:
- CB92488317
- Molecular Formula:
- C21H44Si2
- Molecular Weight:
- 352.75
- MDL Number:
- MFCD17013305
- MOL File:
- 82192-59-4.mol
Last updated:2023-03-20 15:47:56
Silane, 1,1'-(1-propyne-1,3-diyl)bis[1,1,1-tris(1-methylethyl)- Chemical Properties,Uses,Production
Physical properties
bp 130–135°C/0.08 mmHg; d 0.846 g cm?3.
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.
Preparation
1,3-bis(TIPS)propyne is prepared in quantitative yield by silylation of 3-lithio-1-triisopropylsilyl-1- propyne with triisopropylsilyl trifluoromethanesulfonate.
Silane, 1,1'-(1-propyne-1,3-diyl)bis[1,1,1-tris(1-methylethyl)- Preparation Products And Raw materials
Raw materials
Preparation Products
Silane, 1,1'-(1-propyne-1,3-diyl)bis[1,1,1-tris(1-methylethyl)- Suppliers
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Silane, 1,1'-(1-propyne-1,3-diyl)bis[1,1,1-tris(1-methylethyl)-
Silane, 1-propyne-1,3-diylbis[tris(1-methylethyl)-
1,3-Bis(triisopropylsilyl)propyne
82192-59-4