| Low-valent titanium induced reductive cyclization of nitro compounds and aliphatic ketones:facile synthesis of 3,4-dihydro-(2H) -1,2,4-benzothiadiazine-1,1-dioxides |
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| 引用本文： | 钟为慧,陈小原,张永敏. Low-valent titanium induced reductive cyclization of nitro compounds and aliphatic ketones:facile synthesis of 3,4-dihydro-(2H) -1,2,4-benzothiadiazine-1,1-dioxides[J]. 中国化学, 2000, 18(5): 786-788. DOI: 10.1002/cjoc.20000180525 |
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| 作者姓名： | 钟为慧 陈小原 张永敏 |
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| 作者单位： | Department of Chemistry，Zhejiang University(Campus Xixi)，Hangzhou，Zhejiang 310028，China，Department of Chemistry，Zhejiang University(Campus Xixi)，Hangzhou，Zhejiang 310028，China Department of Chemistry，Hunan Jishou University，Jishou，Hunan 416000，China，Department of Chemistry，Zhejiang University(Campus Xixi)，Hangzhou，Zhejiang 310028，China Laboratory of Organometallic Chemistry，Chinese Academy of Sciences，Shanghai 200032，China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (No. 29872010)，Natural Science Foundation of Zhejiang Province, China |
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| 摘 要： | The intermolecular reductive cyclization of o-nitrobenzene-sulfonamides with aliphatic ketones induced by TiCl4/Sm system was studied and a series of 3,3-disubstituted-3,4-dihydro-(2H)-1,2,4-benzothiadiazine-1,1-dioxides were synthesized in moderate to high yields under mild and neutral conditions.
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Low-valent titanium induced reductive cyclization of nitro compounds and aliphatic ketones:facile synthesis of 3,4-dihydro-(2H) -1,2,4-benzothiadiazine-1,1-dioxides |
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| ZHONG,Wei-Hui CHEN,Xiao-Yuan ZHANG,Yong-Min. Low-valent titanium induced reductive cyclization of nitro compounds and aliphatic ketones:facile synthesis of 3,4-dihydro-(2H) -1,2,4-benzothiadiazine-1,1-dioxides[J]. Chinese Journal of Chemistry, 2000, 18(5): 786-788. DOI: 10.1002/cjoc.20000180525 |
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| Authors: | ZHONG Wei-Hui CHEN Xiao-Yuan ZHANG Yong-Min |
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| Affiliation: | Campus Xixi |
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| Abstract: | The intermolecular reductive cyclization of o-nitrobenzene-sulfonamides with aliphatic ketones induced by TiCl4/Sm system was studied and a series of 3,3-disubstituted-3,4-dihydro-(2H)-1,2,4-benzothiadiazine-1,1-dioxides were synthesized in moderate to high yields under mild and neutral conditions. |
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| Keywords: | Nitro compounds ketones reductive cyclization samarium titanium tetrachloride. |
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