Preparation of F 2 MCPGs via Selenoxide Elimination. -The title (2,2-difluoro-3-methylenecyclopropyl)glycine derivatives (V) and (VIII) are prepared through selenoxide elimination, in which a competitive intramolecular substitution reaction occurs depending on the steric environment. -
ChemInform Abstract: Preparation of Methylenedifluorocyclopropanes via Cyclopropyl Anion Promoted β-Elimination.
✍ Scribed by Akira Shibuya; Midori Okada; Yuko Nakamura; Mie Kibashi; Hiroaki Horikawa; Takeo Taguchi
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 36 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0931-7597
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## Abstract Reaction of acyloxyesters containing a trifluoroethoxy group (I) and (III) with LiHMDS proceeds via tandem Dieckmann condensation—alkoxide β‐elimination to give pulvinones (II) and (IV), respectively.
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