743704

1,2-Butadien

≥97.0%

• Synonym(e): 1-Methylallene
• Lineare Formel: CH₂=C=CHCH₃
• CAS-Nummer: 590-19-2
• Molekulargewicht: 54.09
• Beilstein: 1730808
• EG-Nummer: 209-674-2
• MDL-Nummer: MFCD00039911
• UNSPSC-Code: 12142100
• PubChem Substanz-ID: 329765650
• NACRES: NA.22

Eigenschaften

• Assay: ≥97.0%
• Form: gas
• bp: 10.8 °C (lit.)
• SMILES String: CC=C=C
• InChI: 1S/C4H6/c1-3-4-2/h4H,1H2,2H3
• InChIKey: QNRMTGGDHLBXQZ-UHFFFAOYSA-N

Beschreibung

Anwendung

1,2-Butadiene can be used as a reagent:

• To synthesize useful β-borylallylsilanes building blocks by reacting with various achiral silylboranes via Pd-catalyzed asymmetric silaboration reaction.
• In the enantioselective diboration reaction in the presence of palladium catalyst and Lewis base ligand.
• 3-methyl-4-methyleneisocoumarin via formation of ortho-thallated benzoic acid in the presence of thallium trifluoroacetate and palladium catalyst.

Verpackung

500ml high pressure aluminum cylinder equipped with a stainless steel valve according to DIN 477-1.

Sonstige Hinweise

For 743704-250g-EU packaging: 500 mL of aluminium cylinder equipped with brass valve.

Empfohlene Produkte

For 743704-250g-EU: outlet fitting: DIN 477-1 no. 1, Z742160 or Z742161 are the recommended regulators.

Sicherheitshinweise

• Piktogramme: GHS02,GHS04
• Signalwort: Danger
• H-Sätze: H220,H280
• P-Sätze: P210 - P377 - P381 - P410 + P403
• Gefahreneinstufungen: Flam. Gas 1A - Press. Gas Liquefied gas
• Lagerklassenschlüssel: 2A - Gases
• WGK: WGK 1