| An Efficient Synthesis of [1,2,4]Triazolo[3,2-d][1,5]benzoxazepin-2-thiones, a Kind of Novel Tricyclic O,N-Heterocycles |
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| 作者姓名： | 李诤 孟青青 王全瑞 陶凤岗 |
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| 作者单位： | DepartmentofChemistry,FudanUniversity,Shanghai200433,China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (No. 20372015) and the Key Organic Synthesis Laboratory of Jiangsu Province (No. KJS01016). |
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| 摘 要： | A series of novel tricyclic O,N-heterocycles, 1,2,4]triazolo3,2-d]1,5]benzoxazepin-2-thiones 7 were achieved via acid-induced ring closure of the geminal arylazo isothiocyanate compounds 5 which were derived from substituted chroman-4-ones, followed by feasible ring expansion with simultaneous insertion of the nitrogen atom into the carbon skeleton. The X-ray crystal structure of 7d was also described.
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| 关 键 词： | [1 2 4]triazolo[3 2-d][1 5]benzoxazepin-2-thiones 合成 杂环化合物 异硫氰酸盐 闭环 |
An Efficient Synthesis of [1,2,4]Triazolo[3,2-d][1,5]benzoxazepin-2-thiones, a Kind of Novel Tricyclic O,N-Heterocycles |
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| LI,Zheng MENG,Qing-Qing WANG,Quan-Rui TAO,Feng-Gang.An Efficient Synthesis of [1,2,4]Triazolo[3,2-d][1,5]benzoxazepin-2-thiones, a Kind of Novel Tricyclic O,N-Heterocycles[J].Chinese Journal of Chemistry,2004,22(3):290-295. |
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| Authors: | LI Zheng MENG Qing-Qing WANG Quan-Rui TAO Feng-Gang |
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| Institution: | LI,Zheng MENG,Qing-Qing WANG,Quan-Rui TAO,Feng-Gang*Department of Chemistry,Fudan University,Shanghai 200433,China |
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| Abstract: | A series of novel tricyclic O,N-heterocycles, 1,2,4]triazolo3,2-d]1,5]benzoxazepin-2-thiones 7 were achieved via acid-induced ring closure of the geminal arylazo isothiocyanate compounds 5 which were derived from substituted chroman-4-ones, followed by feasible ring expansion with simultaneous insertion of the nitrogen atom into the carbon skeleton. The X-ray crystal structure of 7d was also described. |
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| Keywords: | geminal arylazo isothiocyanate ring closure rearrangement [1 2 4]triazolo[3 2-d][1 5]benzoxazepin-2-thiones |
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