双三甲基硅基胺基锂(LHMDS)

  • ≥97%
有货

库存信息

关闭

库存信息

关闭
货号 (SKU) 包装规格 是否现货 价格 数量
L432696-10g
10g 期货 Stock Image
L432696-50g
50g 期货 Stock Image

基本描述

别名 六甲基二硅氮烷 锂盐 | Hexamethyldisilazane
英文别名 Hexamethyldisilazane lithium salt
规格或纯度 ≥97%
英文名称 Lithium bis(trimethylsilyl)amide(LHMDS)
储存温度 室温,充氩
运输条件 常规运输
产品介绍

双三甲基硅基胺基锂是非亲核性的强布朗斯特(Brønsted)碱,通常可溶于大多数非极性有机溶剂。最常用于有机反应。


应用

生成烯醇盐类化合物(用于制备内酯前体、 吡喃酮类化合物 和环己烷类化合物)的碱。 用于催化膦的 P-H 键加成到碳二亚胺上生成磷杂胍的反应。还用于二取代 1,2,5-噻二唑的新型三步法合成。

Lithium bis(trimethylsilyl)amide is a non-nucleophilic strong Brønsted base, which is generally soluble in most of the nonpolar organic solvents. It is most commonly employed in organic reactions.


Application

Base employed in generating enolates for the preparation of lactone precursors, pyranones, and cyclohexanes. Used to catalyze the addition of phosphine P-H bonds to carbodiimides leading to phosphaguanidines. Also used in a novel three-step synthesis of disubstituted 1,2,5-thiadiazoles.

名称和识别符

PubChem SID 504761037
EC号 223-725-6
分子类型 小分子
IUPAC Name lithium;bis(trimethylsilyl)azanide
INCHI InChI=1S/C6H18NSi2.Li/c1-8(2,3)7-9(4,5)6;/h1-6H3;/q-1;+1
InChi Key YNESATAKKCNGOF-UHFFFAOYSA-N
Canonical SMILES [Li+].C[Si](C)(C)[N-][Si](C)(C)C
Isomeric SMILES [Li+].C[Si](C)(C)[N-][Si](C)(C)C
WGK Germany 3
分子量 167.32
Beilstein号 3567910
Reaxy-Rn 8136861
Reaxys-RN link address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=8136861&ln=

化学和物理性质

密度 0.860g/mLat 25°C (lit.)
敏感性 对空气敏感;对湿度敏感
闪点(℉) 1.4℉
闪点(℃) -17℃
分子量 167.400 g/mol
XLogP3
氢键供体数Hydrogen Bond Donor Count 0
氢键受体数Hydrogen Bond Acceptor Count 1
可旋转键计数Rotatable Bond Count 2
精确质量Exact Mass 167.114 Da
单同位素质量Monoisotopic Mass 167.114 Da
拓扑极表面积Topological Polar Surface Area 1.000 Ų
重原子数Heavy Atom Count 10
形式电荷Formal Charge 0
复杂度Complexity 80.900
同位素原子数Isotope Atom Count 0
定义的原子立体中心计数Defined Atom Stereocenter Count 0
未定义的原子立体中心计数Undefined Atom Stereocenter Count 0
定义的键立体中心计数Defined Bond Stereocenter Count 0
未定义的键立体中心计数Undefined Bond Stereocenter Count 0
所有立体化学键的总数The total count of all stereochemical bonds 0
共价键合单元计数Covalently-Bonded Unit Count 2

安全和危险性(GHS)

象形图 GHS08,   GHS05,   GHS07,   GHS02
信号词 Danger
危险声明

H373: 通过长时间或反复暴露对器官造成损害

H411: 对水生生物有毒并具有长期持续影响

H314: 造成严重的皮肤灼伤和眼睛损伤

H225: 高度易燃的液体和蒸气

H336: 可能引起嗜睡或头晕

H304: 吞咽并进入呼吸道可能致命

H361f: 怀疑破坏生育力

预防措施声明

P261: 避免吸入灰尘/烟雾/气体/雾/蒸汽/喷雾

P305+P351+P338: 如进入眼睛:用水小心冲洗几分钟。如戴隐形眼镜并可方便地取出,取出隐形眼镜。继续冲洗。

P273: 避免释放到环境中。

P280: 戴防护手套/穿防护服/戴防护眼罩/戴防护面具。

P301+P310: 如误吞咽:立即呼叫急救中心/医生。

P210: 远离热源,热表面,火花,明火和其他点火源。 - 禁止抽烟。

WGK Germany 3
Reaxy-Rn 8136861
Reaxys-RN link address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=8136861&ln=
个人防护装备 Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US)

技术规格说明书

Appearance(L432696) White to Light Yellow Powder or Crystalline Chunks or Crystals
Purity(Sec-Butanol Titration) 96.5-103.5(%)
Infrared spectrum Conforms to structure

质检证书(CoA,COO,BSE/TSE 和分析图谱)

C of A & Other Certificates(BSE/TSE, COO):
输入批号以搜索分析图谱:

通过匹配包装上的批号来查找并下载产品的 COA,每批产品都进行了严格的验证,您可放心使用!

找到21个结果

批号(Lot Number) 证书类型 日期 货号
C2504290 分析证书 25-02-24 L432696
C2504300 分析证书 25-02-24 L432696
K2412409 分析证书 24-10-21 L432696
K2412405 分析证书 24-10-21 L432696
J2429072 分析证书 24-04-24 L432696
E2410176 分析证书 24-04-24 L432696
E2410175 分析证书 24-04-24 L432696
C2405441 分析证书 24-01-29 L432696
C2405470 分析证书 24-01-29 L432696
C2405469 分析证书 24-01-29 L432696
C2405438 分析证书 24-01-29 L432696
I2312557 分析证书 23-09-06 L432696
I2312558 分析证书 23-09-06 L432696
I2312559 分析证书 23-09-06 L432696
I2312560 分析证书 23-09-06 L432696
J2325065 分析证书 23-09-06 L432696
L2326021 分析证书 23-09-06 L432696
D2320690 分析证书 23-03-31 L432696
D2320733 分析证书 23-03-31 L432696
D2320680 分析证书 23-03-31 L432696
D2320676 分析证书 23-03-31 L432696

显示更多⌵

可替换产品

此产品的引用文献

1. Chi Zhang, Jiang-An You, Xue Wang, Rui Hou, Xiaofeng Li, Yuxuan Sun, Guorui Qin, Shenghai Li, Suobo Zhang.  (2024)  Design of Precursor Polymers Assists the Processing of Poly(ether ether ketone) Membranes in Solvents.  MACROMOLECULES,  57  (5): (2446-2457).  [10.1021/acs.macromol.3c02072]
2. Huicheng Hu, Jing Liu, Jing Liu, Mohan Yuan, Haifei Ma, Binbin Wang, Ya Wang, Hang Xia, Junrui Yang, Liang Gao, Jianbing Zhang, Jiang Tang, Xinzheng Lan.  (2025)  Double-Heterojunction-Based HgTe Colloidal Quantum Dot Imagers.  ACS Nano,  19  (9): (8974-8984).  [PMID:40016193] [10.1021/acsnano.4c17257]

参考文献

1. Hua Lu,Jianjun Cheng.  (2007-10-30)  Hexamethyldisilazane-mediated controlled polymerization of alpha-amino acid N-carboxyanhydrides..  Journal of the American Chemical Society,  129  ((46)): (14114-14115).  [PMID:17963385]
2. H B Lazrek,D Ouzebla,L Baddi,J J Vasseur.  (2007-12-07)  Glycosylation reaction via a mild and efficient one-pot reaction using doped natural phosphate with iodine as catalyst..  Nucleosides, nucleotides & nucleic acids,  26  ((8-9)): (1095-1098).  [PMID:18058543]
3. Tong Zhang,Ibrahim Khadra,Melvin R Euerby,Graham G Skellern,David G Watson,Justice N A Tettey.  (2008-01-24)  Simultaneous analysis of basic, acidic and neutral compounds on an endcapped octadecylsilane silica-based monolith by pressure-assisted capillary electrochromatography..  Electrophoresis,  29  ((4)): (944-951).  [PMID:18213596]
4. Daniele Fabbri,Leszek Marynowski,Monika J Fabiańska,Michał Zatoń,Bernd R T Simoneit.  (2008-05-24)  Levoglucosan and other cellulose markers in pyrolysates of Miocene lignites: geochemical and environmental implications..  Environmental science & technology,  42  ((8)): (2957-2963).  [PMID:18497150]
5. Takashi Nagase,Yoshihiro Sasazaki,Toshiyuki Kikuchi,Masafumi Machida.  (2008-10-03)  Rapid 3-dimensional imaging of embryonic craniofacial morphology using microscopic computed tomography..  Journal of computer assisted tomography,  32  ((5)): (816-821).  [PMID:18830118]
6. Werner Mormann,Markus Wezstein.  (2008-11-26)  Trimethylsilylation of cellulose in ionic liquids..  Macromolecular bioscience,  ((4)): (369-375).  [PMID:19031387]
7. Jerry Isaacson,Yoshihisa Kobayashi.  (2009-01-29)  An Ugi reaction in the total synthesis of (-)-dysibetaine..  Angewandte Chemie (International ed. in English),  48  ((10)): (1845-1848).  [PMID:19173271]
8. Elsa Vennat,Christine Bogicevic,Jean-Marie Fleureau,Michel Degrange.  (2009-01-29)  Demineralized dentin 3D porosity and pore size distribution using mercury porosimetry..  Dental materials : official publication of the Academy of Dental Materials,  25  ((6)): (729-735).  [PMID:19174308]
9. Hung-Che Chou,Tsong-Rong Yan,Ko-Shao Chen.  (2009-06-24)  Detecting cells on the surface of a silver electrode quartz crystal microbalance using plasma treatment and graft polymerization..  Colloids and surfaces. B, Biointerfaces,  73  ((2)): (244-249).  [PMID:19545984]
10. Tatsuya Nitabaru,Akihiro Nojiri,Makoto Kobayashi,Naoya Kumagai,Masakatsu Shibasaki.  (2009-09-10)  anti-Selective catalytic asymmetric nitroaldol reaction via a heterobimetallic heterogeneous catalyst..  Journal of the American Chemical Society,  131  ((38)): (13860-13869).  [PMID:19736990]
11. Haoyu Tang,Donghui Zhang.  (2010-05-15)  General route toward side-chain-functionalized alpha-helical polypeptides..  Biomacromolecules,  11  ((6)): (1585-1592).  [PMID:20465286]
12. D B Mahadik,A Venkateswara Rao,A Parvathy Rao,P B Wagh,S V Ingale,Satish C Gupta.  (2011-02-01)  Effect of concentration of trimethylchlorosilane (TMCS) and hexamethyldisilazane (HMDZ) silylating agents on surface free energy of silica aerogels..  Journal of colloid and interface science,  356  ((1)): (298-302).  [PMID:21277584]
13. Xiaoguang Li,Jun Shen.  (2011-08-30)  A facile two-step dipping process based on two silica systems for a superhydrophobic surface..  Chemical communications (Cambridge, England),  47  ((38)): (10761-10763).  [PMID:21874180]
14. Adrienne C Greene,Cody M Washburn,George D Bachand,Conrad D James.  (2011-09-03)  Combined chemical and topographical guidance cues for directing cytoarchitectural polarization in primary neurons..  Biomaterials,  32  ((34)): (8860-8869).  [PMID:21885117]
15. Zhengtao Deng,Dongran Han,Yan Liu.  (2011-09-15)  Colloidal synthesis of metastable zinc-blende IV-VI SnS nanocrystals with tunable sizes..  Nanoscale,  ((10)): (4346-4351).  [PMID:21915425]
16. S V Buravkov,V P Chernikov,L B Buravkova.  (2012-03-28)  Simple method of specimen preparation for scanning electron microscopy..  Bulletin of experimental biology and medicine,  151  ((3)): (378-382).  [PMID:22451892]
17. Juliana Tsz Yan Lee,King Lau Chow.  (2012-04-26)  SEM sample preparation for cells on 3D scaffolds by freeze-drying and HMDS..  Scanning,  34  ((1)): (12-25).  [PMID:22532079]
18. Nur Hazlin Hazrin-Chong,Mike Manefield.  (2012-05-09)  An alternative SEM drying method using hexamethyldisilazane (HMDS) for microbial cell attachment studies on sub-bituminous coal..  Journal of microbiological methods,  90  ((2)): (96-99).  [PMID:22561094]
19. Marko Marinkovic,Dagmawi Belaineh,Veit Wagner,Dietmar Knipp.  (2012-06-26)  On the origin of contact resistances of organic thin film transistors..  Advanced materials (Deerfield Beach, Fla.),  24  ((29)): (4005-4009).  [PMID:22730030]
20. Olesya Yarema,Maksym Yarema,Deniz Bozyigit,Weyde M M Lin,Vanessa Wood.  (2015-09-16)  Independent Composition and Size Control for Highly Luminescent Indium-Rich Silver Indium Selenide Nanocrystals..  ACS nano,  ((11)): (11134-11142).  [PMID:26370776]
21. Sebastian Nybin Remello,Fazalurahman Kuttassery,Takehiro Hirano,Yu Nabetani,Daisuke Yamamoto,Satomi Onuki,Hiroshi Tachibana,Haruo Inoue.  (2015-11-04)  Synthesis of water-soluble silicon-porphyrin: protolytic behaviour of axially coordinated hydroxy groups..  Dalton transactions (Cambridge, England : 2003),  44  ((46)): (20011-20020).  [PMID:26526697]
22. Tom Willhammar,Kadir Sentosun,Stefanos Mourdikoudis,Bart Goris,Mert Kurttepeli,Marnik Bercx,Dirk Lamoen,Bart Partoens,Isabel Pastoriza-Santos,Jorge Pérez-Juste,Luis M Liz-Marzán,Sara Bals,Gustaaf Van Tendeloo.  (2017-03-31)  Structure and vacancy distribution in copper telluride nanoparticles influence plasmonic activity in the near-infrared..  Nature communications,  (14925-14925).  [PMID:28358039]
23. Wen-Xiong Zhang,Masayoshi Nishiura,Zhaomin Hou.  (2006-09-14)  Alkali-metal-catalyzed addition of primary and secondary phosphines to carbodiimides. A general and efficient route to substituted phosphaguanidines..  Chemical communications (Cambridge, England),  ((36)): (3812-3814).  [PMID:16969466]
24. Chi Zhang, Jiang-An You, Xue Wang, Rui Hou, Xiaofeng Li, Yuxuan Sun, Guorui Qin, Shenghai Li, Suobo Zhang.  (2024)  Design of Precursor Polymers Assists the Processing of Poly(ether ether ketone) Membranes in Solvents.  MACROMOLECULES,  57  (5): (2446-2457).  [10.1021/acs.macromol.3c02072]
25. Huicheng Hu, Jing Liu, Jing Liu, Mohan Yuan, Haifei Ma, Binbin Wang, Ya Wang, Hang Xia, Junrui Yang, Liang Gao, Jianbing Zhang, Jiang Tang, Xinzheng Lan.  (2025)  Double-Heterojunction-Based HgTe Colloidal Quantum Dot Imagers.  ACS Nano,  19  (9): (8974-8984).  [PMID:40016193] [10.1021/acsnano.4c17257]

溶液计算器

Shall we send you a message when we have discounts available?

Remind me later

Thank you! Please check your email inbox to confirm.

Oops! Notifications are disabled.