A new family of planar-chiral symmetric and unsymmetric salens based on the [2.2]paracyclophane skeleton

✍ Scribed by Tat'yana I. Danilova; Valeria I. Rozenberg; Evgenii V. Vorontsov; Zoya A. Starikova; Henning Hopf

• Book ID: 104359814
• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 392 KB
• Volume: 14
• Category: Article
• ISSN: 0957-4166
• DOI: 10.1016/s0957-4166(03)00254-4

✦ Synopsis

Planar-chiral ortho-hydroxy[2.2]paracyclophanyl ketones as well as ortho-hydroxy[2.2]paracyclophanyl aldehyde were employed as building blocks for the design of a new family of chiral salen type ligands in which the chiral environment can be organized by the planar chiral fragments of [2.2]paracyclophane and modified by introduction of the chiral diamine part. A new family of four different types of chiral salens was successfully synthesized using both direct and stepwise approaches.