226416

α-Methylene-γ-butyrolactone

97%

• Synonyma: alpha-Methylene-gamma-butyrolactone, 3-Methylenedihydro-2(3H)-furanone, Tulipane
• Empirický vzorec (Hillův zápis): C₅H₆O₂
• Číslo CAS: 547-65-9
• Molekulová hmotnost: 98.10
• UNSPSC Code: 12352100
• NACRES: NA.22
• PubChem Substance ID: 24853566
• MDL number: MFCD00005407
• Beilstein/REAXYS Number: 107939
• Assay: 97%
• Form: liquid

Vlastnosti

• Quality Segment: 200
• assay: 97%
• form: liquid
• contains: ~2% 2,6-di-tert-butyl-p-cresol as stabilizer
• refractive index: n20/D 1.472 (lit.)
• bp: 86-88 °C/12 mmHg (lit.)
• solubility: water: soluble(lit.)
• density: 1.119 g/mL at 25 °C (lit.)
• functional group: ester
• storage temp.: 2-8°C
• SMILES string: C=C1CCOC1=O
• InChI: 1S/C5H6O2/c1-4-2-3-7-5(4)6/h1-3H2
• InChI key: GSLDEZOOOSBFGP-UHFFFAOYSA-N

Popis

Application

α-Methylene-γ-butyrolactone (Tulipane) was used to develop optically active spiro-[butyrolactone-pyrrolidine] via Cu(I)-catalyzed exo-selective 1,3-dipolar cycloaddition of azomethine ylides.

Bezpečnostní informace

• pictograms: GHS02,GHS07
• signalword: Warning
• hcodes: H226,H317,H412
• pcodes: P210 - P233 - P240 - P273 - P280 - P303 + P361 + P353
• Hazard Classifications: Aquatic Chronic 3 - Flam. Liq. 3 - Skin Sens. 1
• Skladovací třída: 3 - Flammable liquids
• flash_point_f: 98.6 °F - closed cup
• flash_point_c: 37 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter