Main Reaction: phenol + 4-aminoantipyrine >> 1,5-dimethyl-4-(4-oxo-cyclohexa-2,5-dienylideneamino)- 2-phenyl-1,2-dihydro-pyrazol-3-one

Reference: PubMed ID: 17346119
Authors: Tee KL, Schwaneberg U
Title: Directed evolution of oxygenases: screening systems, success stories and challenges.
Published: 2007 Mar

phenol + 4-aminoantipyrine --> 1,5-dimethyl-4-(4-oxo-cyclohexa-2,5-dienylideneamino)- 2-phenyl-1,2-dihydro-pyrazol-3-one