Issue 1, 2024

Chiral phosphoric acid catalyzed enantioselective inverse-electron-demand oxa-Diels–Alder reactions to synthesize chiral tricyclic tetrahydropyran derivatives

Abstract

A series of enantioenriched tricyclic tetrahydropyran derivatives were achieved through chiral phosphoric acid catalyzed intramolecular inverse electron demand oxa-Diels–Alder (IEDODA) reactions, with good yields (up to 95%) and excellent stereocontrol (>20 : 1 dr, up to 99% ee). The achievement of such high enantioselectivity was ascribed to the rationally designed remote dual hydrogen bonding interaction, by which the conformation of the flexible substrate was well arranged by the catalyst in a reactive and stereoselective manner to participate in the transformation.

Graphical abstract: Chiral phosphoric acid catalyzed enantioselective inverse-electron-demand oxa-Diels–Alder reactions to synthesize chiral tricyclic tetrahydropyran derivatives

Supplementary files

Article information

Article type
Research Article
Submitted
02 Oct 2023
Accepted
22 Nov 2023
First published
23 Nov 2023

Org. Chem. Front., 2024,11, 211-216

Chiral phosphoric acid catalyzed enantioselective inverse-electron-demand oxa-Diels–Alder reactions to synthesize chiral tricyclic tetrahydropyran derivatives

C. Tang, J. Wu, F. Ji, F. Tian, L. Peng and L. Wang, Org. Chem. Front., 2024, 11, 211 DOI: 10.1039/D3QO01615C

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