Main Reaction: cinnamic acid >> p-coumaric acid

Reference: PubMed ID: 20371642
Authors: Weng JK, Akiyama T, Bonawitz ND, Li X, Ralph J, Chapple C
Title: Convergent evolution of syringyl lignin biosynthesis via distinct pathways in the lycophyte Selaginella and flowering plants.
Published: 2010 Apr

cinnamic acid --> p-coumaric acid