Cyclobut-2-En-1-One
[CAS# 32264-87-2]

Identification

• Name: Cyclobut-2-En-1-One
• Synonyms: 1-Cyclobut-2-Enone; 2-Cyclobutene-1-One
• Molecular Formula: C₄H₄O
• Molecular Weight: 68.08
• CAS Registry Number: 32264-87-2
• SMILES: O=C1C=CC1
• InChI: 1S/C4H4O/c5-4-2-1-3-4/h1-2H,3H2
• InChIKey: DFLRGCFWSRELEL-UHFFFAOYSA-N

Properties

• Density: 1.12g/cm³ (Cal.)
• Boiling point: 122.249°C at 760 mmHg (Cal.)
• Flash point: 24.978°C (Cal.)

References

• (1): Rainer Koch and Curt Wentrup. Ketene–acetylene [2 + 2] cycloadditions: cyclobutenone and/or oxete formation?, Org. Biomol. Chem., 2004, 2, 195.