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Chemo- and Diastereoselective Hydrosilylation of Amorphadiene Toward the Synthesis of Artemisinin

Overview
Journal J Org Chem
Specialty Chemistry
Date 2020 Jul 10
PMID 32643937
Citations 1
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Abstract

A formal synthesis of artemisinin starting from amorphadiene is described. This new route relies on the development of a catalytic chemo- and diastereoselective hydrosilylation. The practicability of this method is demonstrated by converting amorphadiene to dihydroartemisinic aldehyde using a one-pot hydrosilylation/oxidation sequence, minimizing the number of purifications and maximizing the productivity through a practical one-pot procedure. In addition, this approach can be coupled with a crystallization-induced diastereoselective transformation (CIDT) to enhance the optical purity of the key target intermediate, dihydroartemisinic aldehyde.

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Site-Selective Functionalization of Unactivated Allylic C-H Bonds via Direct Deprotonation with KTMP: Application to the Formal Total Synthesis of (+)-Artemisinin from Amorphadiene.

Clanton N, Wilson N, Ortiz E, Blumberg S, Frantz D Org Lett. 2023; 25(1):277-281.

PMID: 36592432 PMC: 9841608. DOI: 10.1021/acs.orglett.2c04145.

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