Deuterium incorporation can effectively stabilize the chiral centers of drug and agrochemical candidates that hampered by rapid in vivo racemization. In this work, the synthetically challenging chiral-center deuteration of alcohols has been achieved via a single-electron umpolung reductive-deuteration protocol using benign D2O as deuterium source and mild SmI2 as electron donor. The broad scope and excellent functional group tolerance of this method has been showcased by the synthesis of 43 respective α-deuterioalcohols in high yields and ≥98% deuterium incorporations. The potential application of this versatile method has been exemplified in the synthesis of 6 deuterated drug derivatives, 1 deuterated human hormone, and 3 deuterated natural products. This method using D2O is greener and more efficient compared to traditional pyrophoric-metal-deuteride-mediated reductive deuterations.

中文翻译：

---

以 D2O 为氘源的羰基化合物单电子 Umpolung 还原氘化合成 α-氘醇

掺入氘可以有效地稳定受体内快速消旋化阻碍的药物和农用化学品候选物的手性中心。在这项工作中，通过使用良性 D2O 作为氘源和温和 SmI2 作为电子供体的单电子 umpolung 还原-氘化方案实现了具有合成挑战性的醇手性中心氘化。该方法的广泛范围和优异的官能团耐受性已通过以高产率合成 43 种各自的 α-氘醇和≥98% 的氘掺入量来展示。这种通用方法的潜在应用已在 6 种氘化药物衍生物、1 种氘化人类激素和 3 种氘化天然产物的合成中得到了例证。