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230200

Sigma-Aldrich

硼氢化锂 溶液

2.0 M in THF

别名:

Lithium boron hydride, Lithium hydroborate

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About This Item

线性分子式:
LiBH4
CAS号:
16949-15-8
分子量:
21.78
MDL编号:
MFCD00011088
UNSPSC代码:
12352302
PubChem化学物质编号:
24853783
NACRES:
NA.22
价格与库存信息目前不能提供

表单

liquid

质量水平

200

反应适用性

reagent type: reductant

浓度

2.0 M in THF

密度

0.896 g/mL at 25 °C

SMILES字符串

[Li+].[H][B-]([H])([H])[H]

InChI

1S/BH4.Li/h1H4;/q-1;+1

InChI key

UUKMSDRCXNLYOO-UHFFFAOYSA-N

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应用

反应物用于：
  • 镓、铟、铼和锌三（巯基咪唑基）氢硼酸配合物的制备
  • 机械化学复分解反应
  • 非催化水解制氢
  • 大型金单层保护簇的生长
  • 阴离子取代反应
  • 脱氢反应
硼氢化锂溶液 (2M in THF) 分别用于 5-亚苄基-2,4-噻唑烷二酮类和 5-亚苄基-4-氧代-2-噻唑烷二酮类的还原，并分别生成 5-苄基-2,4-噻唑烷二酮类和 5-苄基-4-氧代-2-噻唑烷二酮类。[1]

包装

推荐将25毫升安全/密封™瓶作为一次性使用的瓶子。重复穿刺可能会导致产品性能下降。

法律信息

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

警示用语：

Danger

危险分类

Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B - STOT SE 3 - Water-react 1

靶器官

Central nervous system, Respiratory system

补充剂危害

EUH019

储存分类代码

4.3 - Hazardous materials which set free flammable gases upon contact with water

WGK

WGK 2

闪点(°F)

-0.4 °F - closed cup

闪点(°C)

-18 °C - closed cup

个人防护装备

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

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
SHBS1431
SHBR4994
SHBQ7232
SHBP8780
SHBN7054

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Regiospecific reduction of 5-benzylidene-2, 4-thiazolidinediones and 4-oxo-2-thiazolidinethiones using lithium borohydride in pyridine and tetrahydrofuran.
Giles RG
Tetrahedron, 56(26), 4531-4537 (2000)
Xinyi Chen et al.
Dalton transactions (Cambridge, England : 2003), 40(38), 9679-9689 (2011-08-19)
In this paper, ammine lithium borohydride (LiBH(4)·NH(3)) was successfully impregnated into multi-walled carbon nanotubes (CNTs) through a melting technique. X-ray diffraction, scanning electron microscopy, Brunauer-Emmett-Teller, and density measurements were employed to confirm the formation of the nanostructured LiBH(4)·NH(3)/CNTs composites. As
Prabhat Arya et al.
Journal of combinatorial chemistry, 6(1), 54-64 (2004-01-13)
A diversity-oriented solution and solid-phase synthesis of tetrahydroquinoline-based tricyclic derivatives has been achieved from enantiomerically pure, natural product-like bicyclic scaffold. The solution synthesis of enantiopure bicyclic scaffold was developed by asymmetric hetero Michael reaction. Our approach for the synthesis of
Piter S Miedema et al.
Physical chemistry chemical physics : PCCP, 14(16), 5581-5587 (2012-03-20)
X-Ray Raman Spectroscopy (XRS) is used to study the electronic properties of bulk lithium borohydride (LiBH(4)) and LiBH(4) in porous carbon nano-composites (LiBH(4)/C) during dehydrogenation. The lithium (Li), boron (B) and carbon (C) K-edges are studied and compared with calculations
G Váradi et al.
International journal of peptide and protein research, 43(1), 29-30 (1994-01-01)
For solid-phase peptide synthesis, 2,4-dimethoxy-4'-hydroxbenzhydrol linker was prepared via lithium borohydride reduction of 2,4-dimethoxy-4'-hydroxybenozophenone. The potassium salt of the linker was coupled to chloromethylpolystyrene. This method proved to be better than use of the cesium salt. This new synthesis gave
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Questions

1–8 of 8 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. Is the tetrahydrofuran (THF) used in Product 230200, Lithium Borohydride, stabilized?

    1 answer

    1. The THF used in this product is stabilized with 0.025% butylated hydroxytoluene (BHT).

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  4. Is Product 230200, Lithium Borohydride, an energy carrier?

    1 answer

    1. Lithium borohydride is renowned for one of the highest energy density chemical energy carriers.  By reacting with atmospheric oxygen, it liberates large amounts of heat.

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  5. What is the Department of Transportation shipping information for this product?

    1 answer

    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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  6. What types of reactions is Product 230200, Lithium Borohydride, used in?

    1 answer

    1. It is reagent for reduction of compounds containing ketonic, aldehydic, or ester carbonyls and a nitrile group, where reduction of the carbonyl but not of the nitrile group is wanted.

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  7. Why does Product 230200, Lithium Borohydride, need to be handled under nitrogen?

    1 answer

    1. This product is moisture sensitive, reacting violently with water, liberating extremely flammable gases.

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  8. Is it necessary to refrigerate Product 230200, Lithium Borohydride?

    1 answer

    1. We do recommend to refrigerate this product, since it may develop pressure at room temperature.

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