Synthesis of dibenzo[c,e][1,2]diazocines—a new group of eight-membered cyclic azo compounds
作者： Tomomi Nokubi , Stephanie Kindt , Timothy Clark , Akio Kamimura , Markus R. Heinrich
DOI: 10.1016/J.TETLET.2014.11.064
关键词:
摘要: 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 the new heterocycles were structurally assigned by 2D NMR experiments and DFT calculations.
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