Synlett 2022; 33(13): 1266-1272
DOI: 10.1055/a-1827-6915
letter

Divergent Thio/Selenolactonization of Styrene-Type Carboxylic Acids and Amides: Synthesis of Chalcogenated Isobenzofuran-1 (3H)-ones and Isochroman-1-ones

Authors

  • Kommuru Goutham

    a   State Key Laboratory of Microbial Technology, Shandong University, Qingdao City, Shandong Province, 266237, P. R. of China
  • Jingran Zhang

    b   Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. of China
  • Yaxin Ouyang

    b   Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. of China
  • Yunfei Du

    b   Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. of China
  • Kang Zhao

    a   State Key Laboratory of Microbial Technology, Shandong University, Qingdao City, Shandong Province, 266237, P. R. of China

K.Z. acknowledges the National Key Research and Development Program of China (2019YFA0905104), and Y.D. acknowledges the National Natural Science Foundation of China (#22071175) for financial support.


Graphical Abstract

Abstract

A divergent synthesis of isobenzofuran-1(3H)-one and 3,4-dihydroisochroman-1-one derivatives has been realized through the reaction of o-alkenyl benzoic acids/amides with PhICl2 and diphenyl disulfides/diselenides. Depending on the substitution type of the o-alkenyl benzoic acid or amide, this metal-free intramolecular oxychalcogenation approach regioselectively affords isobenzofuran-1(3H)-ones or 3,4-dihydroisochroman-1-ones through 5-exo-trig or 6-endo-trig cyclization processes, respectively.

Supporting Information



Publication History

Received: 12 January 2022

Accepted after revision: 18 April 2022

Accepted Manuscript online:
18 April 2022

Article published online:
20 May 2022

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