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Nouvelles Méthodes De Déshalogénation Et De Formation D'Alkyltriméthyl-Acétals De Cétène Par Action De iPr2NLi Sur Quelques α-Bromoesters

✍ Scribed by Claude Lion; Kadija Lebbar; Jean Paul; Boukou Poba


Publisher
Wiley (John Wiley & Sons)
Year
2010
Weight
237 KB
Volume
97
Category
Article
ISSN
0037-9646

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✦ Synopsis


A previously described method consisting in reacting LDA with u-bromoketones has been ertended t o u-bromoesters. DeshaZogemtion ( a f t e r hydrolysis) and f o n a t i o n of ketene alkyZtrimethyZsiZyZ acetaZ8 ( a f t e r SiMejCZ addition) occur and show the genemZity of the method.


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Etude par spectrométrie de masse de la f
✍ Alain Glangetas; Fazil O. Gülacar; Jean M. J. Tronchet; Armand Buchs 📂 Article 📅 1980 🏛 John Wiley and Sons 🌐 German ⚖ 393 KB

**Electron Impact Mass Spectrometry of the 3‐Desoxy‐1,2: 5,6‐di‐__O__‐isopropylidene‐3‐methylidene‐δ‐D‐hexofuranose and Some C(3′)‐Substituted Analogues** The mass spectra of the 3‐desoxy‐1,2:5, 6‐di‐__O__‐isopropylidene‐3‐methylidene‐ α‐D‐__ribo__‐hexofuranose and of some C(3′)‐mono‐ and ‐disubsti