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Preparation and Application of Iron-substituted (Z)-Enals: Synthesis of 5-Substituted α,β-Butenolides

✍ Scribed by Mark Mikulás; Christian Möller; Sybille Rust; Frank Wierschem; Patrick Amrhein; Karola Rück-Braun

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 135 KB
Volume: 342
Category: Article
ISSN: 1615-4150
DOI: 10.1002/1521-3897(200010)342:8<791::aid-prac791>3.0.co;2-w

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✦ Synopsis

A reaction sequence furnishing cyclic β-[η 5 -C 5 H 5 (CO) 2 Fe]-substituted enals 5 starting from β-keto esters 1 is described. Organolithiums were found to react smoothly with the iron-substituted enals yielding α,β-butenolides 6 by

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