186155

Lithium acetylide, ethylenediamine complex

90%

• Synonym(s): Lithium acetylide ethylenediamine complex, Lithium acetylide, compd. with 1,2-ethanediamine
• Linear Formula: LiC≡CH · NH₂CH₂CH₂NH₂
• CAS Number: 6867-30-7
• Molecular Weight: 92.07
• Beilstein: 3593824
• EC Number: 229-967-9
• MDL number: MFCD00013183
• UNSPSC Code: 12352103
• PubChem Substance ID: 24851204
• NACRES: NA.22

Properties

• Assay: 90%
• bp: 110.6 °C (lit.)
• mp: 76 °C (dec.)
• storage temp.: 2-8°C
• SMILES string: [Li]C#C.NCCN
• InChI: 1S/C2H8N2.C2H.Li/c3-1-2-4;1-2;/h1-4H2;1H;
• InChI key: QJQWXTYPTBEPGS-UHFFFAOYSA-N

Description

Application

• 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.

Safety Information

• Pictograms: GHS02,GHS05
• Signal Word: Danger
• Hazard Statements: H261,H314
• Precautionary Statements: P231 + P232 - P260 - P280 - P301 + P330 + P331 - P303 + P361 + P353 - P305 + P351 + P338 + P310
• Hazard Classifications: Eye Dam. 1 - Skin Corr. 1B - Water-react 2
• Supplementary Hazards: EUH014
• Storage Class Code: 4.3 - Hazardous materials which set free flammable gases upon contact with water
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves