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Novel chiral tridentate Schiff base ligands of the [2.2]paracyclophane series: synthesis and application

✍ Scribed by Tatyana I. Danilova; Valeria I. Rozenberg; Elena V. Sergeeva; Zoya A. Starikova; Stefan Bräse

Book ID
104359865
Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
268 KB
Volume
14
Category
Article
ISSN
0957-4166

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✦ Synopsis

The first example of the efficient application of chiral tridentate N,O-[2.2]paracyclophane ligands of the imino type for enantioselective diethylzinc addition to aliphatic and aromatic aldehydes is presented. The enantiomeric excess of the resulted secondary alcohols is up to 93% e.e.

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Novel planar chiral P,N-[2.2]paracycloph
Novel planar chiral P,N-[2.2]paracyclophane ligands: synthesis and application in palladium-catalyzed allylic alkylation
✍ Xun-Wei Wu; Ke Yuan; Wei Sun; Ming-Jie Zhang; Xue-Long Hou 📂 Article 📅 2003 🏛 Elsevier Science 🌐 English ⚖ 251 KB

A series of planar chiral P,N-[2.2]paracyclophane ligands were synthesized and applied in enantioselective palladiumcatalyzed allylic alkylation, in which the central chirality of [2.2]paracyclophane is the dominant stereocontrol element. The effect of the substituents attached to the phosphorus ato