ChemInform Abstract: New Access to Trisubstituted 3-Pyrrolines under Phosphine Catalysis.
โ Scribed by Marie Schuler; Deepti Duvvuru; Pascal Retailleau; Jean-Francois Betzer; Angela Marinetti
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 54 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0931-7597
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๐ SIMILAR VOLUMES
Reduction of phosphinic acids (I) with phenylsilane or of the corresponding diacids (V) with LiAlH 4 provides phosphines (II) or diphosphines (III) via their acid chlorides. They may be used in Michael additions with the activated alkene (V) or in most cases as stable borane adducts such as (VII) an
Reaction of the Lithio-Derivative of Methoxy Allene with SAMP-Hydrazones: Access to Enantiopure 3-Pyrrolines. -Depending on the solvent used ฮฑ-lithio methoxy allene (I) reacts with SAMP-hydrazones (I) and (V) to give 3-methoxy-3-pyrrolines (III) or ฮฑ-allenyl hydrazines (VI). Quaternization of the p