Naslov
Halohydrin dehalogenase-catalysed synthesis of fluorinated aromatic chiral building blocks

Autori
Dokli, Irena ; Milčić, Nevena ; Marin, Petra ; Svetec Miklenić, Marina ; Sudar, Martina ; Tang, Lixia ; Findrik Blažević, Zvjezdana ; Majerić Elenkov, Maja

Izvornik
Catalysis communications (1566-7367) 152 (2021); 106285, 5

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, kratko priopcenje, znanstveni

Ključne riječi
biocatalysis ; epoxides ; halohydrin dehalogenase ; kinetic resolution ; β-substituted alcohols

Sažetak
Kinetic resolution of a series of fluorinated styrene oxide derivatives was studied using halohydrin dehalogenase. A mutant HheC-W249P catalysed nucleophilic ring-opening with azide and cyanide ions with excellent enantioselectivity (E- values up to >200), which gives access to various enantiopure β- substituted alcohols and epoxides. It was found that the enzyme tolerates substrates in concentrations over 50 mM. However, different side reactions were observed at elevated concentrations and with prolonged reaction time. The biocatalytic azidolysis and cyanolysis of racemic 4- trifluoromethylstyrene oxide were performed on preparative scale, affording (R)-2- azido-1-(4- trifluoromethyl- phenyl)-ethanol in 38% yield and 97% ee, and (S)-3-hydroxy-3-(4- trifluoromethyl- phenyl)- propionitrile in 30% yield and 98% ee.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Biotehnologija

POVEZANOST RADA