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CC BY ND NC 4.0 · SynOpen 2017; 01(01): 0129-0137
DOI: 10.1055/s-0036-1591503
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Pd/C-Catalyzed Intramolecular C–H Arylation for the Synthesis of Phenanthridinones and Dibenzo-α-pyrones

Lingyu Zhao*
,
Guodong Shen*
,
Tongxin Zhang
,
Zhen Wang
,
Yuhua Liang

This work was financially supported by the National Natural Science Foundation of China (No. 21402079) and the Research Fund for the Doctoral Program of Liaocheng University (No. 318051403 and 318051419).
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Publication History

Received: 06 September 2017

Accepted: 04 October 2017

Publication Date:
20 October 2017 (online)


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Abstract

Pd/C was found to be an efficient and convenient metal catalyst for intramolecular C–H arylation reactions in the synthesis of phenanthridinones and dibenzo-α-pyrones. A variety of phenanthridinones and dibenzo-α-pyrones were synthesized under the highly active catalytic system of Pd/C-KOAc-DMA in moderate to excellent yields. The high catalytic activity, high recyclability, low costs, and ease of removal of Pd/C, combined with its commercial availability, render this protocol attractive for both synthetic and industrial applications.