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lithium hydrogenacetylide

Product Name
lithium hydrogenacetylide
CAS No.
1111-64-4
Chemical Name
lithium hydrogenacetylide
Synonyms
Lithioethyne;Ethynyllithium;Ethinyl lithiuM;Lithioacetylene;LITHIUM ACETYLENIDE;Monolithium acetylide;lithium hydrogenacetylide
CBNumber
CB1888948
Molecular Formula
C2HLi
Formula Weight
31.97
MOL File
1111-64-4.mol
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lithium hydrogenacetylide Property

solubility 
soluble in THF
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Hazard and Precautionary Statements (GHS)

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lithium hydrogenacetylide Chemical Properties,Usage,Production

Definition

ChEBI: An alkynyllithium compound resulting from the replacement of one of the hydrogens of acetylene by lithium.

Application

Lithium Acetylide is a reagent for adding Acetylene to ketones, opening epoxides, and ethynylation of alkyl halides.

Synthesis

Monolithium lithium acetylide is prepared by treating a THF solution of Acetylene with n-Butyllithium at 78 °C (eq 1). It is critical to keep the temperature at -78 °C. The concentration should be 0.5 M or less. At higher concentrations and temperatures, a white precipitate forms (presumably Dilithium Acetylide), and yields of additional product fall appreciably. Properly formed lithium acetylide in THF should be a clear, colorless solution.

Precautions

Lithium acetylide/THF solution must be used immediately after preparation. It decomposes above -78 °C. A saturated solution of THF/acetylene should not be used during the preparation of lithium acetylide since this may lead to an acetylene atmosphere above the THF. n-Butyllithium dropping through the acetylene atmosphere may react violently. Lithium acetylide is air and moisture sensitive.

lithium hydrogenacetylide Preparation Products And Raw materials

Raw materials

Preparation Products

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lithium hydrogenacetylide Suppliers

Shaanxi Dideu Medichem Co. Ltd
Tel
029-61856358 15229202216
Fax
029-88380327
Email
1020@dideu.com
Country
China
ProdList
10011
Advantage
58
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd.
Tel
025-66113011 18112977050
Email
cb5@aikonchem.com
Country
China
ProdList
10526
Advantage
58
Huangshi Bo’Er Chemical Co., Ltd.
Tel
0714-6401888 18671400300
Fax
0714-6401888
Email
273568016@qq.com
Country
China
ProdList
548
Advantage
58

1111-64-4, lithium hydrogenacetylideRelated Search:


  • lithium hydrogenacetylide
  • LITHIUM ACETYLENIDE
  • Ethynyllithium
  • Lithioacetylene
  • Lithioethyne
  • Monolithium acetylide
  • Ethinyl lithiuM
  • 1111-64-4