Chemoselective and Divergent Synthesis of Chlorohydrins and Oxaheterocycles via Ir-Catalyzed Asymmetric Hydrogenation. 2023

Yan Zong, and Xiaomei Zou, and Jingyuan Song, and Gen-Qiang Chen, and Xumu Zhang
Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Department of Chemistry, and Medi-Pingshan, Southern University of Science and Technology, Shenzhen 518000, People's Republic of China.

Chlorohydrins and oxaheterocycles are synthetically valuable building blocks for diverse natural products and therapeutic substances. A highly efficient Ir/f-phamidol-catalyzed asymmetric hydrogenation of ω-chloroketones was successfully developed, and various chlorohydrins and oxaheterocycles were obtained divergently with excellent yields and enantioselectivities (up to >99% yield and >99% ee). Synthetic utilities of this divergent transformation were demonstrated by gram-scale synthesis of key intermediates of several enantiomerically enriched drugs via this catalytic methodology.

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