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■ The Correction on the Structure of Diels-Alder Reaction Products of Furan Derivatives with Maleic Anhydride

Toshio Suzuki, Akiko Tomino, Seiko Kagawa, Katsuo Unno, Tetsuji Kametani,* Masataka Ihara, and Tamiko Takahashi

*Pharmaceutical Institute, Tohoku University, Aobayama, Sendai 980-8578, Japan

Abstract

The structure of Diels-Alder adducts and related compounds prepared from furans and maleic anhydride was re-examined hy the ¹³C-NMR spectroscopy and our tentative structures were revised.