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- Title
2,2′-Biindolyl Reactions with Aldehydes.
- Authors
Koch, Daniel; Koch, Eva; Desarbre, Eric; Stensland, Birgitta; Svensson, Per H.; Bergman, Jan
- Abstract
2,2′-Biindolyl has been condensed with aromatic and aliphatic aldehydes and products featuring 10-membered rings have been obtained. Thus, benzaldehyde gave compound 24a as the primary product, which readily underwent transannular oxidative coupling to 25a. The structures of both compounds were confirmed by X-ray crystallography. The product from 2,2′-biindolyl and formaldehyde under strongly acidic conditions was slightly different leading to compound 11, whose structure also was confirmed by X-ray crystallography. In this case, two molecules of 2,2′-biindolyl reacted with six molecules of formaldehyde.
- Subjects
ALDEHYDES; BENZALDEHYDE; OXIDATIVE coupling; X-ray crystallography; FORMALDEHYDE
- Publication
European Journal of Organic Chemistry, 2016, Vol 2016, Issue 7, p1389
- ISSN
1434-193X
- Publication type
Article
- DOI
10.1002/ejoc.201501561