Reaction catalyzed by chloride peroxidase (1.11.1.10)
+
Br-
+
=
+
H2O
[3.2.0]hept-2-en-6-one
+
Br-
+
H2O2
=
(1S,2S,3S,5S)-3-bromo-2-hydroxybicyclo[3.2.0]heptan-6-one
+
H2O