Abstract
Despite of a remarkable ring strain hitherto unknown dibenzo[c,e][1,2]diazocines 3 could be prepared from readily available azo compounds 4 under mild Ullmann-type reaction conditions. The obtained stereoisomers of the new heterocycles 3 were structurally assigned by 2D NMR experiments and DFT calculations.
Original language | English |
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Pages (from-to) | 316-320 |
Journal | Tetrahedron Letters |
Volume | 56 |
Issue number | 2 |
Early online date | 22 Nov 2014 |
DOIs | |
Publication status | Published - 8 Jan 2015 |
Keywords
- Radical reactions
- Azo compounds
- Ullmann coupling
- Diazocines
- Heterocycles