A rapid and efficient access to diaryldibenzo[b,f][1,5]diazocines |
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Authors: | Wang Xiao Li Jianzhong Zhao Na Wan Xiaobo |
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Institution: | Qingdao Insitute of Bioenergy & Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shangdong Province, China 266101. |
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Abstract: | 2-Benzoylbenzoyl azides undergo facile cyclization under acidic conditions to give substituted dibenzob,f]1,5]-diazocines in good yields. This approach shortens the synthetic steps toward these compounds as compared with conventional methods. The mechanism of the diazocine synthesis is assumed to proceed by an unprecedented intermolecular 2 + 2] cyclization. |
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