所有图片(1)
别名:
六甲基二硅氮烷 锂盐
线性分子式:
[(CH3)3Si]2NLi
CAS号:
分子量:
167.33
Beilstein:
3567910
MDL编号:
UNSPSC代码:
12352111
PubChem化学物质编号:
NACRES:
NA.22
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形式
liquid
质量水平
浓度
1.5 M in THF
密度
0.893 g/mL at 25 °C
SMILES字符串
[Li]N([Si](C)(C)C)[Si](C)(C)C
InChI
1S/C6H18NSi2.Li/c1-8(2,3)7-9(4,5)6;/h1-6H3;/q-1;+1
InChI key
YNESATAKKCNGOF-UHFFFAOYSA-N
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一般描述
Lithium bis(trimethylsilyl)amide is commonly used in organic synthesis as a non-nucleophilic strong Bronsted base. It is soluble in most nonpolar solvents such as aromatic hydrocarbons, hexanes, and THF.
应用
Lithium bis(trimethylsilyl)amide can be used as a reagent:
- In the deprotonation and nucleophilic difluoromethylation reactions.
- 3-methoxy substituted dihydropyrrole derivatives by reacting with aldehydes and lithiated methoxyallene via in situ formations of N-trimethylsilylated imines.
- In Darzens condensation and directed aldol condensation reactions.
- To synthesize poly(N-octyl-p-benzamide)s by chain-growth polycondensation of 4-octylaminobenzoic acid methyl ester.
警示用语：
Danger
危险分类
Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Self-heat. 1 - Skin Corr. 1B - STOT SE 3
靶器官
Central nervous system, Respiratory system
补充剂危害
WGK
WGK 2
闪点(°F)
31.3 °F
闪点(°C)
-0.4 °C
法规信息
危险化学品
Elsa Vennat et al.
Dental materials : official publication of the Academy of Dental Materials, 25(6), 729-735 (2009-01-29)
The objectives of this study were to assess demineralized dentin porosity and quantify the different porous features distribution within the material using mercury intrusion porosimetry (MIP) technique. We compared hexamethyldisilazane (HMDS) drying and lyophilization (LYO) (freeze-drying) in sample preparation. Fifty-six
Nur Hazlin Hazrin-Chong et al.
Journal of microbiological methods, 90(2), 96-99 (2012-05-09)
The use of hexamethyldisilazane (HMDS) as a drying agent was investigated in the specimen preparation for scanning electron microscopy (SEM) imaging of bacterial surface colonization on sub-bituminous coal. The ability of microbes to biofragment, ferment and generate methane from coal
Daniele Fabbri et al.
Environmental science & technology, 42(8), 2957-2963 (2008-05-24)
Using the pyrolysis-gas chromatography-mass spectrometry and off-line pyrolysis/silylation methods for lignites from three Miocene brown coal basins of Poland resulted in the characterization of many organic compounds, including dominant cellulose degradation products such as levoglucosan, 1,6-anhydro-beta-D-glucofuranose, and 1,4:3,6-dianhydroglucopyranose. Levoglucosan is
Hexamethyldisilazane-mediated controlled polymerization of alpha-amino acid N-carboxyanhydrides.
Hua Lu et al.
Journal of the American Chemical Society, 129(46), 14114-14115 (2007-10-30)
A Sebok et al.
Journal of chromatography. A, 1211(1-2), 104-112 (2008-10-14)
This paper presents a derivatization, mass fragmentation study relating to the most common six cholic acids, such as cholic, lithocholic, chenodeoxycholic, ursodeoxycholic, 3-hydroxy,7-ketocholanic and dehydrocholic acids, identified and quantified as pollutants in the aquatic environment at the first time. Derivatizations
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