Synthesis 2017; 49(02): 371-382
DOI: 10.1055/s-0036-1589404
paper
© Georg Thieme Verlag Stuttgart · New York

Synthesis of Enantioenriched Phthalide and Isoindolinone Derivatives from 2-Formylbenzoic Acid

Authors

  • Dominik Niedek

    Institute of Organic Chemistry, Justus-Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany   eMail: prs@uni-giessen.de
  • Sören M. M. Schuler

    Institute of Organic Chemistry, Justus-Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany   eMail: prs@uni-giessen.de
  • Christian Eschmann

    Institute of Organic Chemistry, Justus-Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany   eMail: prs@uni-giessen.de
  • Raffael C. Wende

    Institute of Organic Chemistry, Justus-Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany   eMail: prs@uni-giessen.de
  • Alexander Seitz

    Institute of Organic Chemistry, Justus-Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany   eMail: prs@uni-giessen.de
  • Felix Keul

    Institute of Organic Chemistry, Justus-Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany   eMail: prs@uni-giessen.de
  • Peter R. Schreiner*

    Institute of Organic Chemistry, Justus-Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany   eMail: prs@uni-giessen.de
Weitere Informationen

Publikationsverlauf

Received: 28. Juli 2016

Accepted after revision: 05. Oktober 2016

Publikationsdatum:
03. November 2016 (online)


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This manuscript is dedicated to Prof. Dieter Enders on the occasion of his 70th birthday and for his seminal contributions to organic chemistry.

Abstract

Transformations of 2-formylbenzoic acid provide direct access to a series of heterocyclic organic compounds such as phthalides and isoindolinones. Here, we use (+)-cinchonine as a catalyst in conjunction with nonafluoro-tert-butanol as a hydrogen-bond donor to afford enantiomerically enriched acylated 3-hydroxyphthalides with up to 99% yield and 90% ee through dynamic kinetic resolution. Moreover, various 3-alkoxyphthalides as well as 2-alkyl-3-hydroxy-1-isoindolinones were synthesized from 2-formylbenzoic acid.

Supporting Information