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Synlett 2001; 2001(8): 1237-1240
DOI: 10.1055/s-2001-16053
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A New and Straightforward Approach to Highly Functionalized 2-Imidazolin-2-ones

Sergeja Bombek* , Roman Lenaršič, Marijan Kočevar, Slovenko Polanc
  • *Faculty of Chemistry and Chemical Technology, University of Ljubljana, Aškerčeva 5, SI-1000 Ljubljana, Slovenia; Fax + 386-1-24-19-271; E-mail: slovenko.polanc@uni-lj.si
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Publication Date:
31 December 2001 (online)

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Substituted aminocarbonyldiazenecarboxylates reacted with 1,3-diketones or β-ketoesters under mild reaction conditions in the presence of ZrCl4 to give highly functionalized imidazolin-2-ones via the corresponding Michael adducts. Reaction of unsymmetrical precursors resulted in the formation of only one regioisomer.

aminocarbonyldiazenecarboxylates - amination - regioselectivity - cyclizations - imidazolin-2-ones

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