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Synlett 2013; 24(19): 2531-2534
DOI: 10.1055/s-0033-1340058
DOI: 10.1055/s-0033-1340058
cluster
Design and Synthesis of Helically Chiral Spirocyclic P3 Phosphazenes and Characterization of Their Onium Salts
Further Information
Publication History
Received: 03 October 2013
Accepted: 04 October 2013
Publication Date:
28 October 2013 (online)
![](https://www.thieme-connect.de/media/synlett/201319/lookinside/thumbnails/10.1055-s-0033-1340058-1.jpg)
Abstract
Helically chiral spirocyclic P3 phosphazenes were designed as a novel family of chiral organosuperbases. The newly designed chiral P3 phosphazenes were synthesized from commercially available sources in several steps and characterized by X-ray crystallographic analysis of their onium salts. The optically pure P3 phosphazenium salt was obtained by using preparative chiral stationary phase HPLC and the absolute configuration of the helical chirality was determined.
Supporting Information
- for this article is available online at http://www.thieme-connect.com/ejournals/toc/synlett.
- Supporting Information
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References and Notes
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- 15 CCDC-964339 [(±)-1b·HBr] contains the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data_request/cif.
For reviews on organobase catalysis, see:
For reviews on enantioselective catalysis by using chiral guanidines and P1 phosphazenes, see: