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Synfacts 2011(4): 0426-0426  
DOI: 10.1055/s-0030-1259595
Metal-Mediated Synthesis
© Georg Thieme Verlag Stuttgart ˙ New York

Polysequential Synthesis of 2-Azaanthra-cenes from Ethynylbenzenes

Contributor(s): Paul Knochel, Andreas J. Wagner
J. Cao, X. Yang, X. Hua, Y. Deng, G. Lai*
Hangzhou Normal University, P. R. of China
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Publication History

Publication Date:
18 March 2011 (online)

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Significance

A sequence of Sonogashira coupling, alkynyl imine-allenyl imine isomerization, aza-Diels-Alder, and elimination-aromatization ­reactions is reported. Thus, 1,6-diynes and imid­oyl chlorides are converted into substituted 2-azaanthracenes in high yields.