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56-35-9 - Bis(tri-n-butyltin) oxide, 97% - Hexabutyl distannoxane - Tri-n-butyltin oxide - A13242 - Alfa Aesar

A13242 Bis(tri-n-butyltin) oxide, 97%

CAS-Nummer
56-35-9
Synonyme
Hexabutyl distannoxane
Tri-n-butyltin oxide

Größe Preis ($) Menge Verfügbarkeit
100g 30,82
500g 103,05
2500g 385,60
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Bis(tri-n-butyltin) oxide, 97%

MDL
MFCD00009418
EINECS
200-268-0

Chemische Eigenschaften

Formel
C24H54OSn2
Molmasse
596.07
Schmelzpunkt
-45°
Siedepunkt
179-180°/2mm
Flammpunkt
168°(334°F)
Dichte
1.172
Brechungsindex
1.4865
Löslichkeit
Soluble in water (0.071 g/L)

Anwendungen

Bis(tri-n-butyltin) oxide is employed in the synthesis of α,β-unsaturated methyl ketones, isoxazoles.

Bemerkungen

Store at room temperature. Incompatible with oxidizing agents. Ensure adequate ventilation.

Literaturverweise

E.I. Krajnc.; P.W. Wester.;J.G. Loeber.; F.X.R. van Leeuwen.; J.G. Vos.; H.A.M.G. Vaessen.; C.A. van der Heijden. Toxicity of bis(tri-n-butyltin)oxide in the rat: I. Short-term effects on general parameters and on the endocrine and lymphoid systems. Toxicol. Appl. Pharmacol. 1984, 75 (3),363-386 .

J.G. Vos.; A.De Klerk.; E.I. Krajnc.; H.Van Loveren.; J. Rozing. Immunotoxicity of Bis(tri-n-butyltin)oxide in the rat: Effects on thymus-dependent immunity and on nonspecific resistance following long-term exposure in young versus aged rats. Toxicol. Appl. Pharmacol. 1990, 105 (1),144-155 .

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).

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H301-H311-H315-H319-H360-H372-H400-H410

Toxic 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.

Sicherheitshinweise: P273-P280-P309-P310-P501a

Avoid release to the environment. Wear protective gloves/protective clothing/eye protection/face protection. 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.

Weitere Referenzen

Beilstein
745057
Gefahrenklasse
6.1
Verpackungsgruppe
III
Harmonized Tariff Code
2931.20
TSCA
Yes
RTECS
JN8750000

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