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FeCl3·6H2O-catalyzed synthesis of β-ketothioesters from chain α-oxo ketene dithioactals

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Abstract

A FeCl3·6H2O-catalyzed synthesis of β-ketothioesters from the hydrolysis reaction of chain α-oxoketene dithioacetals was carried out. Subsequently, we explored the FeCl3·6H2O-catalyzed Friedel-Crafts alkylation of the synthesized β-ketothioesters with alcohols in CH3CN at 25 °C, affording the desired α-alkylated β-ketothioesters in excellent yields. Wide scope of the substrates, use of inexpensive reagents, high yields under mild reaction conditions are notable features of these reactions.

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Correspondence to Haifeng Yu or Dongyan Hou.

Additional information

Supported by the Fundamental Research Funds for the Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, China(No.130028652), the Natural Science Foundation of Liaoning Province, China(No.201602002), the Foundation of Liaoning Province Education Administration, China(No.L2015003) and the National Natural Science Foundation of China(No.20902010).

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Zhao, H., Diao, Q., Yu, H. et al. FeCl3·6H2O-catalyzed synthesis of β-ketothioesters from chain α-oxo ketene dithioactals. Chem. Res. Chin. Univ. 33, 746–752 (2017). https://doi.org/10.1007/s40242-017-7082-1

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  • DOI: https://doi.org/10.1007/s40242-017-7082-1

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