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235032

Bis(trimethylsilyl) malonate

98%

Synonym(s):

Malonic acid bis(trimethylsilyl ester)

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About This Item

Linear Formula:
(CH3)3SiOCOCH2COOSi(CH3)3
CAS Number:
18457-04-0
Molecular Weight:
248.42
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
24854074
EC Number:
242-342-5
Beilstein/REAXYS Number:
2212115
MDL number:
MFCD00009631
Assay:
98%
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assay

98%

refractive index

n20/D 1.416 (lit.)

bp

63-66 °C/1 mmHg (lit.)

density

0.974 g/mL at 25 °C (lit.)

SMILES string

C[Si](C)(C)OC(=O)CC(=O)O[Si](C)(C)C

InChI

1S/C9H20O4Si2/c1-14(2,3)12-8(10)7-9(11)13-15(4,5)6/h7H2,1-6H3

InChI key

ATCKJLDGNXGLAO-UHFFFAOYSA-N

General description

Bis(trimethylsilyl) malonate is precursor for metal-organic chemical vapor deposition (MOCVD) of HfO2 and ZrO2 thin films. It undergoes acylation reaction with acid chlorides and acyl carbonates in the presence of triethylamine and magnesium or lithium salts to give β-keto acids or methyl ketones.

Application

Bis(trimethylsilyl) malonate was used as cyclocondensation agent in cyclocondensation reactions. It was also used in the preparation of β-keto acids and methyl ketones.

Pictograms

Flame
GHS02

Signal Word

Warning

Hazard Codes

H226

Hazard Classifications

Flam. Liq. 3

Storage Class

3 - Flammable liquids

WGK

WGK 3

Flash Point (°F)

75.2 °F - closed cup

Flash Point (°C)

24 °C - closed cup

PPE (personal protective equipment)

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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