225770
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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关于此项目
线性分子式:
[(CH3)3Si]2NLi
化学文摘社编号:
分子量:
167.33
UNSPSC Code:
12352111
NACRES:
NA.22
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
3567910
Concentration:
1.0 M in THF
Form:
liquid
InChI
1S/C6H18NSi2.Li/c1-8(2,3)7-9(4,5)6;/h1-6H3;/q-1;+1
SMILES string
[Li]N([Si](C)(C)C)[Si](C)(C)C
InChI key
YNESATAKKCNGOF-UHFFFAOYSA-N
form
liquid
concentration
1.0 M in THF
density
0.891 g/mL at 25 °C
Quality Level
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General description
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。
Application
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。
- 用于环状聚（α-类肽）和α-（二氟甲基）苯乙烯的合成。
- 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 ）。
Legal Information
Sure/Seal is a trademark of Sigma-Aldrich Co. LLC
signalword
Danger
hcodes
Hazard Classifications
Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B - STOT SE 3
target_organs
Central nervous system, Respiratory system
supp_hazards
存储类别
3 - Flammable liquids
flash_point_f
1.4 °F - closed cup
flash_point_c
-17 °C - closed cup
法规信息
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