[A13242] CAS 56-35-9 | Bis(tri-n-butyltin) oxide, 97%

CAS : 56-35-9
UN# : UN2788
MDL : MFCD00009418
Hazard Class : 6.1
EINECS : 200-268-0
Packing Group : II

Other name :

Hexabutyl distannoxaneTri-n-butyltin oxide

Chemical Properties

Formula : C24H54OSn2
Formula weight : 596.07
Melting Point : -45°
Boiling Point : 179-180°/2mm
Flash point : 168°(334°F)
Density : 1.172
Refractive Index : 1.4865
Sensitivity : Ambient temperatures.
Form : Liquid
Solubility : Soluble in water (0.071 g/L)

Literature References

Reacts with alcohols to give tri-n-butylstannyl ethers which, for simple alcohols, are very susceptible to hydrolysis: Synthesis, 56 (1969); J. Organomet. Chem., 110, C57 (1976). In combination with bromine or NBS, allylic, benzylic and secondary alcohols are oxidized to carbonyl compounds, enabling the selective oxidation of secondary, in the presence of primary, alcohols: Bull. Chem. Soc. Jpn., 49, 1656 (1976); Tetrahedron Lett., 4597 (1976); J. Am. Chem. Soc., 98, 1629 (1976). Similarly, sulfides give sulfoxides with no over-oxidation to sulfones: Tetrahedron Lett., 2413 (1977). Reacts with terminal alkynes to give alkynyl tin reagents. Where these reagents have electron-withdrawing substituents, they undergo regioselective cycloaddition with 1,3-dienes: Tetrahedron, 45, 1145 (1989): Converts thioamides to nitriles, as does Di-n-butyl­tin oxide, L14491: J .Org. Chem., 47, 4594 (1982). Reagent for mild, selective non-hydrolytic deprotection of esters: Tetrahedron Lett., 32, 4239 (1991); J. Org. Chem., 59, 7259 (1994); Tetrahedron Lett., 36, 3311 (1995).

Notes

Store at room temperature. Incompatible with oxidizing agents. Ensure adequate ventilation.Other References:Beilstein: 745057UN#: UN2788

Grade Specifications

Grade Specifications

Hazard Statements : H301-H311-H315-H319-H360-H372-H400-H410Toxic if swallowed.Toxic in contact with skin.Causes skin irritation.Causes serious eye irritation.May damage fertility or the unborn child.Causes damage to organs through prolonged or repeated exposure.Very toxic to aquatic life.Very toxic to aquatic life with long lasting effects.
Precautionary Statements : P280-P273-P309-P310-P501aWear protective gloves/protective clothing/eye protection/face protection.Avoid release to the environment.IF exposed or if you feel unwell:Immediately call a POISON CENTER or doctor/physician.Dispose of contents/container in accordance with local/regional/national/international regulations.