Synthesis of optically active gem-difluorinated organic molecules attracts a great deal of interest due to their unique properties in pharmaceutical and agrochemical areas. Herein, a series of enantioenriched α,α-difluoro-β-arylbutanoic esters were prepared in high yields (83–99%) with moderate to excellent enantioselectivities (≤97:3 er) by palladium-catalyzed asymmetric hydrogenation.

中文翻译：

---

Pd催化不对称加氢合成对映体富集的α，α-二氟-β-芳基丁酸酯。

光学活性的宝石-二氟化有机分子的合成因其在制药和农业化学领域的独特性能而引起了人们的极大兴趣。本文中，通过钯催化的不对称氢化反应，以高收率（83–99％），中等至极好的对映选择性（≤97：3 er）制备了一系列对映体富集的α，α-二氟-β-芳基丁酸酯。