100008-84-2Relevant articles and documents
Synthesis of dibenzopyranones and pyrazolobenzopyranones through copper(0)/Selectfluor system-catalyzed double C[sbnd]H activation/oxygen insertion of 2-arylbenzaldehydes and 5-arylpyrazole-4-carbaldehydes
Zhang, Jian,Shi, Dongdong,Zhang, Haifeng,Xu, Zheng,Bao, Hanyang,Jin, Hongwei,Liu, Yunkui
, p. 154 - 163 (2016/12/23)
A mild and efficient protocol for the synthesis of dibenzopyranones and pyrazolobenzopyranones was developed involving a copper(0)/Selectfluor system-catalyzed double C[sbnd]H activation/oxygen insertion of 2-arylbenzaldehydes and 5-arylpyrazole-4-carbaldehydes. Preliminary mechanistic studies suggest that both water and dioxygen act as the oxygen source in the formation of pyranone scaffolds.
Cycloaddition of diphenylnitrilimine to coumarins. The synthesis of 3a,9b-dihydro-4-oxo-1h-benzopyrano [4,3-c]pyrazole derivatives
Shawali,Elanadouli,Albar
, p. 1877 - 1884 (2007/10/02)
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