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Merck

183083

Dibutyltin(IV) oxide

98%

Synonym(s):

Dibutyloxotin

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About This Item

Linear Formula:
(CH3CH2CH2CH2)2SnO
CAS Number:
818-08-6
Molecular Weight:
248.94
UNSPSC Code:
12352103
NACRES:
NA.22
PubChem Substance ID:
24851031
EC Number:
212-449-1
Beilstein/REAXYS Number:
4126243
MDL number:
MFCD00001992
Assay:
98%

Key Documents

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InChI key

JGFBRKRYDCGYKD-UHFFFAOYSA-N

InChI

1S/2C4H9.O.Sn/c2*1-3-4-2;;/h2*1,3-4H2,2H3;;

SMILES string

CCCC[Sn](=O)CCCC

assay

98%

autoignition temp.

534 °F

mp

≥300 °C (lit.)

Quality Level

100

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General description

Dibutyltin(IV) oxide is an organotin compound that is commonly used as a Lewis acid catalyst in organic synthesis. For instance, it can be used for the formation of carbon-carbon bonds through coupling reactions and in the preparation of esters from carboxylic acids and alcohols. It also finds use in allylation reactions, cycloaddition reactions, and ring-opening polymerizations.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Muta. 2 - Repr. 1B - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 1 - STOT SE 1

target_organs

thymus

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
MKCV5615
0000050340
0000098341
0000087482
0000039556

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K Takeo et al.
Carbohydrate research, 278(2), 301-313 (1995-12-20)
Dibutyltin oxide-mediated regioselective chloroacetylation of methyl 1-thio-beta-xylobioside, followed by treatment of the product with 4-methylbenzoyl chloride-pyridine, gave methyl 4-O-chloroacetyl-2,3-di-O-(4-methylbenzoyl)-beta-D-xylopyranosyl-(1-->4) -2.3-di - O-(4-methylbenzoyl)-1-thio-beta-D-xylopyranoside (18) in 70% yield. Coupling of 18 with benzyl alcohol afforded the disaccharide benzyl beta-glycoside, which was O-dechloroacetylated
Y Ishido et al.
Nucleic acids symposium series, (8)(8), s7-s8 (1980-01-01)
For partial phenylcarbamoylation of the hydroxy-groups of ribonucleosides, dibutyltin oxide--phenyl isocyanate system was found to be surperior to the bis(tributyltin) oxide--phenyl isocyanate system from the standpoint of reaction procedures including isolation of the products; the reaction was proved to occur
K Gajda-Schrantz et al.
Acta pharmaceutica Hungarica, 70(3-6), 119-130 (2001-05-31)
Nine complexes of adenosine and related compounds (adenosine-5'-monophosphate, adenosine-5'-triphosphate, 1-methyl-adenosine, pyridoxal-5-phosphate and beta-nicotinamide-adenine-dinucleotide-phosphoric acid) with di-n-butyltin(IV) oxide and/or di-n-butytin(IV) dichloride were prepared in the solid state. The compositions of the complexes were determined by standard analytical methods. It was found
Hong-Min Liu et al.
Carbohydrate research, 337(19), 1763-1767 (2002-11-09)
A mild and efficient neutral method for the cleavage of O-acetyl groups with dibutyltin oxide has been developed. This method is especially useful in the synthesis of glycosides containing base- or acid-sensitive multifunctional groups.
K Takeo et al.
Carbohydrate research, 277(2), 231-244 (1995-11-22)
2- and 4-Nitrophenyl beta-D-xylopyranosides (4 and 5) were transformed, via dibutyltin oxidemediated acylation, into the corresponding 2,3-di-O-benzoyl derivatives 11 and 15. Xylobiose and xylotriose were easily isolated by charcoal column chromatography from a commercially available material and converted into the
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