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Alternative synthetic approaches to (±)-euryfuran via the furan ring transfer reaction

✍ Scribed by Yoskiyasu Baba; Toshihiro Sakamoto; Seizo Soejima; Ken Kanematsu

Book ID: 104203417
Publisher: Elsevier Science
Year: 1994
Tongue: French
Weight: 1010 KB
Volume: 50
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(01)85635-0

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✦ Synopsis

Abstruct Two effective synthetic approaches to ( f )-euryfuran 1 are described. One synthetic mute makes use. of sequential fumn ring transfer reaction type I and type III as key steps followed by sigmatmpic. rearrangement, and another route proceeded through furan ring transfer reaction type I and annulation with ethyl vinyl ketone subsequently. 1.17 (3H, s), 1.16 (3H, s), 1.32 (3H, d, J=O.66 Hz), 1.75-2.27 (SH, m), 2.45-2.83 (4H, m), 7.10 (lH, t, J=1.65 Hz), 7.17 (lH, d, J=1.32 Hz); MS m/z 233 (M+H), 232 (M+), 231 (M-H); HRMS calcd for C15Hfl2 (M+) 232.1463, found 232.1468.

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