Rhodium-Catalyzed Desymmetrization by Hydroformylation of Cyclopentenes: Synthesis of Chiral Carbocyclic Nucleosides

Angew Chem Int Ed Engl. 2016 May 23;55(22):6511-4. doi: 10.1002/anie.201601478. Epub 2016 Apr 18.

Abstract

Excellent enantioselectivities (up to 97 % ee) and diastereoselectivities (up to >99:1 d.r.) have been achieved in the desymmetrization of cyclopentenes by catalytic hydroformylation. This novel methodology provides an efficient and concise synthetic route to chiral cyclopentane carboxaldehydes. The key intermediate, (1S,3S)-(3-hydroxymethyl)cyclopentanol, for the synthesis of carbocyclic-ddA was obtained in three steps.

Keywords: alkenes; diastereoselectivity; enantioselectivity; hydroformylation; rhodium.

Publication types

  • Research Support, Non-U.S. Gov't