371289

2-Bromo-3-methyl-2-butene

96%

• Lineární vzorec: (CH₃)₂C=C(Br)CH₃
• Číslo CAS: 3017-70-7
• Molekulová hmotnost: 149.03
• NACRES: NA.22
• PubChem Substance ID: 24863097
• UNSPSC Code: 12352100
• MDL number: MFCD00191852
• Assay: 96%
• Form: liquid

Vlastnosti

• Quality Segment: 200
• assay: 96%
• form: liquid
• contains: copper pellets as stabilizer
• refractive index: n20/D 1.474 (lit.)
• bp: 40 °C/75 mmHg (lit.)
• density: 1.284 g/mL at 25 °C (lit.)
• functional group: alkyl halide, bromo
• SMILES string: C\C(C)=C(\C)Br
• InChI: 1S/C5H9Br/c1-4(2)5(3)6/h1-3H3
• InChI key: DBELOSOZLGEZBM-UHFFFAOYSA-N

Popis

General description

2-Bromo-3-methyl-2-butene is a vinylic bromide compound. Palladium/di-1-adamantyl-n-butylphosphine-catalyzed reductive carbonylation of 2-bromo-3-methyl-2-butene has been reported. Cross-coupling reaction of 2-bromo-3-methyl-2-butene with potassium 6-(benzoyloxy)hexyltrifluoroborate and 3-(benzoyloxy)propyltrifluoroborate has been investigated.

Application

2-Bromo-3-methyl-2-butene may be used in the preparation of:

• 2,3,4,5-tetramethyl-2,4-hexadiene
• 2-iodo-3-methyl-2-butene
• diastereomers of 2-amino-3-hydroxy-4,5-dimethylhexanoic acid
• lithium reagent, 2-lithio-3-methylbut-2-ene
• D-allo-(2R,3R,4R)-2-amino-3-hydroxy-4,5-dimethylhexanoic acid-containing peptide, pipecolidepsin A.

Bezpečnostní informace

• pictograms: GHS02,GHS06
• signalword: Danger
• hcodes: H226,H301
• pcodes: P210 - P233 - P240 - P241 - P242 - P301 + P310
• Hazard Classifications: Acute Tox. 3 Oral - Flam. Liq. 3
• Skladovací třída: 3 - Flammable liquids
• wgk: WGK 3
• flash_point_f: 77.0 °F
• flash_point_c: 25 °C