4.2.3.111 | geranyl diphosphate + H2O = (-)-alpha-terpineol + diphosphate |
the substrate geranyl diphosphate is ionized by diphosphate elimination, resulting in the geranyl cation. Subsequently, this cation is converted into the linalyl cation and alpha-terpinyl cation. The intermediate alpha-terpinyl cation is the precursor for all cyclic monoterpenes. alpha-Terpineol is formed after water capture of the alpha-terpinyl cation. A cyclization reaction resulting in 1,8-cineole uses alpha-terpineol as a precursor |
748984 |