Subscribe to RSS
Please copy the URL and add it into your RSS Feed Reader.
https://www.thieme-connect.de/rss/thieme/en/10.1055-s-00000084.xml
Synthesis 1991; 1991(12): 1130-1136
DOI: 10.1055/s-1991-28404
DOI: 10.1055/s-1991-28404
paper
© Georg Thieme Verlag, Rüdigerstr. 14, 70469 Stuttgart, Germany. All rights reserved. This journal, including all individual contributions and illustrations published therein, is legally protected by copyright for the duration of the copyright period. Any use, exploitation or commercialization outside the narrow limits set by copyright legislation, without the publisher's consent, is illegal and liable to criminal prosecution. This applies in particular to photostat reproduction, copying, cyclostyling, mimeographing or duplication of any kind, translating, preparation of microfilms, and electronic data processing and storage.
Highly SN2′-, (E)-, and Antiselective Alkylation of Allylic Phosphates. Facile Synthesis of Coenzyme Q10
Further Information
Publication History
Publication Date:
29 April 2002 (online)
![](https://www.thieme-connect.de/media/synthesis/199112/lookinside/thumbnails/10.1055-s-1991-28404-1.jpg)
Treatment of secondary allylic chlorides or allylic phosphates in tetrahydrofuran with prenyl Grignard reagent in the presence of CuCN · 2 LiCl gave geraniol or farnesol derivatives with high SN2′ selectivity. Phosphate leaving groups were highly trans-stereoselective for the formation of (E,E)-farnesol derivatives. Furthermore, complete anti-SN2′ selectivity was observed in the alkylation of optically active allylic phosphates. The present method appears to be an excellent carbon-carbon coupling reaction with high regio-, (E)-, and enantioselectivity. Coenzyme Q10 (ubiquinone 10) was efficiently synthesized using this methodology.