4.4 Article

α-Alkoxycarbonyl-α-hydroxy secondary amides from a carbamoylsilane and α-ketoesters

Journal

TETRAHEDRON
Volume 73, Issue 39, Pages 5813-5819

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2017.08.035

Keywords

Ketoesters; Carbamoylsilanes; Amides; Addition; Synthetic methods

Funding

  1. Shanxi Province Foundation for Returness [0713]
  2. Natural Science Foundation of Shanxi Province [2012011046-9]
  3. Foundation of Shanxi Normal University, China [WL2016CXCY-YJ-30]

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The addition of N-methoxymethyl-N-organylcarbamoyl(trimethyl)silane to alpha-ketoesters in anhydrous toluene at 60 degrees C afforded alpha-alkoxycarbonyl-alpha-siloxy amides in high yields (75-96%). The methoxymethyl was used as an amino protecting group and could be easily converted into hydrogen atom by simple acid hydrolysis leading to alpha-alkoxycarbonyl-alpha-hydroxy secondary amides. (c) 2017 Elsevier Ltd. All rights reserved.

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