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Synlett 1996; 1996(6): 547-548
DOI: 10.1055/s-1996-5496
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Reductive Dimerization of Cyclopropane-1,1-dicarboxylic Esters Using Samarium(II) Diiodide (SmI2)

Masayuki Yamashita* , Kazunori Okuyama, Takashi Ohhara, Ikuo Kawasaki, Shunsaku Ohta
  • *Kyoto Pharmaceutical University, Misasagi-Nakauchicho 5, Yamashinaku, Kyoto 607, Japan, Fax +81 (75) 595 4795
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Publication Date:
31 December 2000 (online)

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In the presence of samarium diiodide (SmI2), several cyclopropane-1,1-dicarboxylic esters were dimerized to give 3,4-disubstituted-1,1,6,6-hexanetetracarboxylic esters in moderate to good yields.

samarium diiodide - cyclopropane-1,1-dicarboxylic ester - dimerization - ring opening - 1,1,6,6-hexanetetracarboxylic ester