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-00000083.xml
Synlett 1996; 1996(11): 1065-1066
DOI: 10.1055/s-1996-5688
DOI: 10.1055/s-1996-5688
letter
© 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.
Studies in Spiroketal Synthesis 2. A Tandem Cyclization Route to the 1,7-Dioxaspiro[5.5]undecane Ring System
Further Information
Publication History
Publication Date:
31 December 2000 (online)
A novel route to the 1,7-dioxaspiro[5.5]undecane ring system has been demonstrated using a double carbonyl tandem cyclization strategy. The reaction begins with intramolecular β-cleavage of a β-lactone ring by a ketone oxygen, and terminates with nucleophilic addition to a spirooxocarbenium ion.
spiroketals - β-lactones - oxocarbenium ions - silane nucleophiles