Synthesis 2022; 54(24): 5500-5508
DOI: 10.1055/s-0040-1720040
paper

Asymmetric Synthesis of 3,3-Disubstituted Isoindolinones Enabled by Organocatalytic Functionalization of Tertiary Alcohols

Jin-Long Wang
,
Bin Mao
This work was financially supported by the Zhejiang Provincial National­ Natural Science Foundation of China (Zhejiang Provincial NSFC; LY19B020010) and the Fundamental Research Funds for the Provincial Universities of Zhejiang (RF-C2020005).


Abstract

An enantioselective intramolecular heterocyclization with in situ generated 3-hydroxyisoindolinone-derived N-acyliminium ions has been successfully accomplished. In the presence of a catalytic amount of a chiral phosphoric acid, functionalized 3,3-disubstituted isoindolinones bearing N-acyl-N,O-acetal moieties were obtained with good yields and a high level of stereocontrol (up to 98:2 er). This efficient method proceeds under mild conditions and exhibits broad scope with respect to both 3-hydroxyisoindolinones and hydroxyl partners.

Supporting Information



Publikationsverlauf

Eingereicht: 07. Juli 2022

Angenommen nach Revision: 10. August 2022

Artikel online veröffentlicht:
23. September 2022

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