Lithium acetylide ethylenediamine complex

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Lithium acetylide ethylenediamine complex

Product Name: Lithium acetylide ethylenediamine complex
CAS No.: 6867-30-7
Chemical Name: Lithium acetylide ethylenediamine complex
Synonyms: LITHIUM ACETYLIDE;ide, ethyL;ithium acetyL;enediamine compL;Lithium, (1,2-ethaned;1,2-Ethanediamine-ethynyllithium (1:1);LITHIUM ACETYLIDE-ETHYLENEDIAMINE COMPLE;Lithium acetylidethylenediamine complex;LITHIUM ACETYLIDE ETHYLENEDIAMINE COMPLEX;lithium acetylene, ethylenediamine complex
CBNumber: CB2707213
Molecular Formula: C4H7LiN2
Formula Weight: 90.05
MOL File: 6867-30-7.mol

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Lithium acetylide ethylenediamine complex Property

Melting point:: 76 °C (dec.)
Boiling point:: 110.6 °C (lit.)
Density: 1,04 g/cm³
Flash point:: 7 °F
storage temp.: 2-8°C
solubility: Soluble in ethylene diamine, n-propyl amine, n-butyl amine, pyridine, dimethyl formamaide, diglyme, dioxan and dimethylsulfoxide.
form: Crystals or Crystalline Powder
color: Slightly yellow to light brownor
Sensitive: Moisture Sensitive
BRN: 3593824
InChIKey: QJQWXTYPTBEPGS-UHFFFAOYSA-N
CAS DataBase Reference: 6867-30-7(CAS DataBase Reference)
EPA Substance Registry System: Lithium, (1,2-ethanediamine-.kappa.N,.kappa.N')ethynyl- (6867-30-7)

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Safety

Hazard Codes: F,C
Risk Statements: 15-34-67-65-63-48/20-11-35-14/15-20/21/22-14
Safety Statements: 26-43-45-62-36/37/39-43B-16-6A-7/8-3/7/9
RIDADR: UN 3399 4.3/PG 1
WGK Germany: 3
F: 10-21
TSCA: Yes
HazardClass: 4.3
PackingGroup: III
HS Code: 38249095

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H261In contact with water releases flammable gas

H314Causes severe skin burns and eye damage

Precautionary statements

P231+P232Handle under inert gas. Protect from moisture.

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 186155
Product name: Lithium acetylide, ethylenediamine complex
Purity: 90%
Packaging: 10g
Price: $124
Updated: 2024/03/01

Sigma-Aldrich

Product number: 186155
Product name: Lithium acetylide, ethylenediamine complex
Purity: 90%
Packaging: 50g
Price: $208
Updated: 2024/03/01

TCI Chemical

Product number: L0300
Product name: Lithium Acetylide Ethylenediamine Complex
Purity: >95.0%(T)
Packaging: 25g
Price: $106
Updated: 2021/12/16

Alfa Aesar

Product number: L12401
Product name: Lithium acetylide ethylenediamine complex, tech. 90%
Packaging: 25g
Price: $102
Updated: 2023/06/20

Alfa Aesar

Product number: L12401
Product name: Lithium acetylide ethylenediamine complex, tech. 90%
Packaging: 100g
Price: $299
Updated: 2023/06/20

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Lithium acetylide ethylenediamine complex Chemical Properties,Usage,Production

Chemical Properties

Lithium Acetylide Ethylenediamine Complex is a slightly yellow to light brown crystals, Lithium acetylide is an unstable solid which disproportionates to form lithium carbide (dilithium acetylide) and acetylene. It is soluble in liquid ammonia at its boiling point to the extent of just over one mole per liter. It is not sensitive to shock and presents a hazard due only to possible caustic burns and the hazards presented by ammonia and acetylene, which form when the material contacts the air.

Uses

The largest industrial use of lithium acetylide is in the production of vitamin A. It is used to ethynylate methyl vinyl ketone to produce a tertiary carbinol, an intermediate in the multistep synthesis.
A second industrial use is in the production of Placidyl®, a tranquilizer . In this case it is used to ethynylate methyl beta-chloro vinyl ketone. Lithium acetylide is used extensively in the laboratory, mostly for the ethynylation of ketones.
Lithium acetylide is not an article of commerce since it is unstable and cannot be shipped.

Uses

Lithium acetylide ethylenediamine complex is used in the synthesis of a chiral cyclopropanol. It is also used as an alkynylating reagent for the enantioselective alkynylation of ketones catalyzed by lithium binaphtholate without using other metal sources.

Uses

Lithium acetylide, ethylenediamine complex is a general reagent to synthesize ethynylated ketones.
It is used as a ligand in the coordination chemistry to synthesize transition metal complexes such as 1-alkynyl-dimethyl(triorganophosphine)gold(III) complex.
It is employed in the ring opening reaction of epoxides, as in the total synthesis of (?)-goniotrionin and englerin A.
It can also be used in the ethynylation of alkyl halides to prepare terminal alkynes.

Production Methods

Lithium acetylide is produced both in the laboratory and industrially by dissolving lithium metal in refluxing liquid ammonia and then bubbling acetylene into the solution. The solution of monolithium acetylide thus formed is stabilized by the complexing of the lithium ion with ammonia forming a polar acetylenic anion which does not react further with lithium metal. However, if the reaction is carried out in tetrahydrofuran, for example, the lithium acetylide reacts further with lithium to form dilithium acetylide (lithium carbide). In fact, if the ammonia is removed from a solution of lithium acetylide, it disproportionates to dilithium acetylide and acetylene.

Preparation

The ethylenediamine complex of lithium acetylide is produced by allowing lithium metal to react with ethylenediamine in benzene at reflux to form AMithioethylenediamine: H2NCH2CH2NH2+Li -> L1HNCH2CH2NH2+05H2.

Lithium acetylide ethylenediamine complex Preparation Products And Raw materials

Raw materials

Preparation Products

1-ethynyl-2-methyl penten-2-ol

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View Lastest Price from Lithium acetylide ethylenediamine complex manufacturers

Career Henan Chemical Co

Product: Lithium acetylide ethylenediamine complex 6867-30-7
Price: US $2.00/KG
Min. Order: 1g
Purity: 98%min
Supply Ability: ask
Release date: 2020-01-08

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C4H9N2Li

C4H9LiN2

C2H8N2C2HLi

LiC8801CHNH2CH2CH2NH2

C2HLi

Alkynyl

Organometallic Reagents

Organolithium

Chemical Synthesis

Organometallic Reagents

Alkynyl

Organolithium

Organometallic Reagents