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183083

Dibutyltin(IV) oxide

Name: Dibutyltin(IV) oxide
Brand: ALDRICH

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%

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Properties

Quality Level

100

assay

98%

autoignition temp.

534 °F

mp

≥300 °C (lit.)

SMILES string

CCCC[Sn](=O)CCCC

InChI

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

InChI key

JGFBRKRYDCGYKD-UHFFFAOYSA-N

Description

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.

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Danger

Storage Class

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

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

Hazard Classifications

Acute Tox. 3 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

Immune system, thymus

Regulatory Information

危险化学品

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Mild and selective deprotection method of acetylated steroids and diterpenes by dibutyltin oxide.

Shao-Min Wang et al.

Steroids, 72(1), 26-30 (2006-12-30)

Dibutyltin oxide (DBTO) was first utilized for the deacetylation of steroid and diterpene esters. The results showed the deprotection of acetylated steroids and diterpenes separately with moderate catalysis dibutyltin oxide in methanol selectively removed part acetyl groups of these substrates

[Experimental toxicity of indium formate and a mixture of indium formate-dibutyltin oxide (90-10) in the rat].

J P Anger et al.

Journal de toxicologie clinique et experimentale, 8(6), 401-418 (1988-11-01)

Regioselective formation of 6-O-acylsucroses and 6,3'-di-O-acylsucroses via the stannylene acetal method.

Qinghui Wang et al.

Carbohydrate research, 342(17), 2657-2663 (2007-09-26)

Regioselective formation of 6-O-acylsucroses and 6,3'-di-O-acylsucroses in one pot with good yields was achieved for the first time by a typical acylation method of sucrose via its dibutylstannylene acetal. Pure monoesters at OH-6 and diesters at OH-6,3' obtained by these

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Global Trade Item Number

SKU	GTIN
183083-100G	04061838756077
183083-500G	04061838756084