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Visible-Light-Induced Synthesis of Carbazoles by in Situ Formation of Photosensitizing Intermediate
- Visible-Light-Induced Synthesis of Carbazoles by in Situ Formation of Photosensitizing Intermediate
- Chatterjee, Tanmay; Roh, Geum-bee; Shoaib, Mahbubul Alam; Suh, Chang-Heon; Kim, Jun Soo; Cho, Cheon-Gyu; Cho, Eun Jin
- Ewha Authors
- SCOPUS Author ID
- Issue Date
- Journal Title
- ORGANIC LETTERS
- 1523-7060; 1523-7052
- vol. 19, no. 7, pp. 1906 - 1909
- AMER CHEMICAL SOC
- SCI; SCIE; SCOPUS
- A visible-light-induced synthesis of N-H carbazoles from easily accessible 2,2'-diaminobiaryls in the absence of any external photosensitizer is reported. The process only requires BuONO and natural resources, visible light, and molecular oxygen for the synthesis of N-H carbazoles. Experimental and computational studies support that the in situ formation of a visible-light-absorbing photosensitizing intermediate, benzocinnoline N-imide, is responsible for the activation of triplet molecular oxygen to singlet oxygen that, in turn, promotes the synthesis of carbazole.
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