5 years ago

Transition-Metal-Free Photoinduced Intramolecular Annulation of 2,3-Di(hetero)arylchromen-4-one

Transition-Metal-Free Photoinduced Intramolecular Annulation of 2,3-Di(hetero)arylchromen-4-one
Zunting Zhang, Chenchen Li, Tao Wang, Yong Liang, Jie Han, Rui Wang, Siqi Feng, Ying Li
An efficient transition-metal-free photoinduced intracyclization of 4H-chromen-4-ones in EtOH–H2O (7:1, v/v) at ambient temperature for the construction of complicated fused-ring heteroaromatics is established. The reaction proceeds smoothly without requiring any catalysts/additives.

Publisher URL: http://dx.doi.org/10.1021/acs.orglett.7b01531

DOI: 10.1021/acs.orglett.7b01531

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