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Synlett 1990; 1990(3): 153-154
DOI: 10.1055/s-1990-21017
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Cleavage Reactions of Penams with lodonium Ylides Leading to Ring Expansion

Jahyo Kang* , Jae Hyoung Lee, Seung Bai Noh, Chemg Soug Oh, Ha Young Kim, Bong Young Chung
  • *Department of Chemistry, Sogang University, Seoul 121-742, South Korea
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Publication Date:
08 March 2002 (online)

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Reactions of penams with stabilized α-acyl iodonium ylides in the presence of a catalytic amount of copper(I) chloride provided the corresponding ring-expanded 1-aza-7-oxa-4-thiabicyclo[6.2.0]dec-5-en-10-ones.