(5Z)-4-bromo-5-(bromomethylene)-3-butyl-2(5H)-furanone

O=C1C=CC(=C(Br)Br)O1
Reaction #2507808
5-(dibromomethylene)-2(5H)-furanone
DOI: 10.6084/m9.figshare.5104873.v1uspto-grants-2011_06