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225770

Sigma-Aldrich

双(三甲基硅基)氨基锂 溶液

1.0 M in THF

别名:

六甲基二硅氮烷 锂盐

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25 G
¥2,465.37
500 G
¥10,505.95

¥2,465.37


国内现货,预计发货时间2025年4月27日详情


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25 G
¥2,465.37
500 G
¥10,505.95

About This Item

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

¥2,465.37


国内现货,预计发货时间2025年4月27日详情


获取大包装报价

表单

liquid

质量水平

浓度

1.0 M in THF

密度

0.891 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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D15292780352513259
Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

100

grade

battery grade

grade

-

grade

-

grade

analytical standard

form

liquid

form

liquid

form

liquid

form

-

application(s)

battery manufacturing

application(s)

-

application(s)

-

application(s)

environmental
pharmaceutical

impurities

≤10 ppm H2O, ≤10 ppm acid

impurities

-

impurities

-

impurities

≤0.02% water

assay

≥99.9%

assay

99%

assay

≥99.0% (GC)

assay

≥99.0% (GC)

一般描述

三甲基硅基胺基锂(LHMDS)是一种非亲核强碱,广泛应用于有机合成中的脱保护反应和碱催化反应。它通常可溶于大多数非极性有机溶剂。

应用

双三甲基硅基胺基锂溶液(1.0 M,溶于THF溶液)可用作碱:
  • 催化聚(对苯甲酰胺)合成中的聚合反应。 [1]
  • 用于环状聚(α-类肽)和α-(二氟甲基)苯乙烯的合成。[2]
  • 用于定向醛醇缩合和Darzens缩合反应;芳基酯衍生物的α-芳基化和烯丙基胺化反应。
  • 与六甲基二硅基氮烷钠(NaHMDS)相比,可用于生成动力学烯醇化物(kinetic enolate),因为生成的烯醇化物比NaHMDS生成的烯醇化物更具有区域稳定性(regiostable )。

包装

25mL Sure/Seal瓶推荐用作一次性瓶。 反复穿刺可能导致产品性能下降。

法律信息

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

警示用语:

Danger

危险分类

Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B - STOT SE 3

靶器官

Central nervous system, Respiratory system

补充剂危害

储存分类代码

3 - Flammable liquids

WGK

WGK 2

闪点(°F)

1.4 °F - closed cup

闪点(°C)

-17 °C - closed cup

法规信息

危险化学品
  • 技术规格说明书

  • 历史批次信息供参考:

    分析证书(COA)

    Lot/Batch Number

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    ? -(Difluoromethyl) styrene: improved approach to grams scale synthesis
    Justyna WK,et al.
    Journal of Fluorine Chemistry, 179, 175-178 (2015)
    Macromolecules, 39, 5347-5347 (2006)
    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
    Tatsuya Nitabaru et al.
    Journal of the American Chemical Society, 131(38), 13860-13869 (2009-09-10)
    Full details of an anti-selective catalytic asymmetric nitroaldol reaction promoted by a heterobimetallic catalyst comprised of Nd(5)O(O(i)Pr)(13), an amide-based ligand, and NaHMDS (sodium hexamethyldisilazide) are described. A systematic synthesis and evaluation of amide-based ligands led to the identification of optimum

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