Combination of Novozym 435–Catalyzed Hydrolysis and Mitsunobu Reaction for Production of (<i>R</i>)-<font>γ</font>-Lactones
作者:Yasutaka Shimotori、Tetsuo Miyakoshi
DOI:10.1080/00397910903134618
日期:2010.5.11
Chiral -lactones of both enantiomers were synthesized with more than 90% optical purities. The key step was Novozym 435-catalyzed hydrolysis of racemic N-benzyl-4-acetoxyalkylamides. Additionally, because (R)--lactones are predominant in apricot, mango, peach, passion fruit, and strawberry, synthesis was attempted using only one enantiomer selectively. The (R)-enantimer was synthesized with more than 80% total yield and more than 90% optical purity by a combination of Novozym 435-catalyzed hydrolysis and the Mitsunobu reaction.