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Synthesis 1988; 1988(10): 792-794
DOI: 10.1055/s-1988-27709
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Preparation of Protected ß-Keto Aldehydes from ß-Keto Esters via Selective Reduction of Acyl(alkoxycarbonyl)ketene Dithioacetals

Eun Bok Choi* , In Kwon Youn, Chwang Siek Pak
  • *Korea Research Institute of Chemical Technology, P.O. Box 9, Daedeog-Danji, Chung Nam, South Korea
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Publication Date:
12 September 2002 (online)

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The acyl(alkoxycarbonyl)ketene dithioacetals 2 prepared from the corresponding ß-keto esters 1 in almost quantitative yield are reduced selectively with magnesium in methanol and subsequently dealkoxycarbonylated to give protected ß-keto aldehydes 4 high yields.