| Low-valent Titanium Induced Intramolecular Reductive Coupling of Keto-enamines:A Facile Synthesis of 2,3,5-Trisubstituted Pyrroles |
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| 引用本文： | 范学森 张新迎 等. Low-valent Titanium Induced Intramolecular Reductive Coupling of Keto-enamines:A Facile Synthesis of 2,3,5-Trisubstituted Pyrroles[J]. 中国化学, 2003, 21(3): 336-338. DOI: 10.1002/cjoc.20030210323 |
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| 作者姓名： | 范学森 张新迎 等 |
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| 作者单位： | [1]DepartmentofChemistry,ZhejiangUniversity,XixiCampus,Hangzhou,Zhejiang310028,China [2]DepartmentofChemistry,HenanNormalUniversity,Xinxinang,Henan453002,China |
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| 摘 要： | Promoted by low-valent titaium reagent which was generated in situ from Sm/TiCl4 system,keto-enamine derivatives underwent efficient intromolecular deoxygenative coupling reactions and afforded the corresponding 2,3,5-trisubstituted pyrroles in moderate to good yields under mild reaction conditions.
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| 关 键 词： | 催化还原 四氯化钛负载钐催化剂 2 3 5-三取代吡咯 合成 |
Low‐valent Titanium Induced Intramolecular Reductive Coupling of Keto‐enamines: A Facile Synthesis of 2,3,5‐Trisubstituted Pyrroles |
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| Fan Xue‐Sen,Zhang Xin‐Ying,Zhang Yong‐Min. Low‐valent Titanium Induced Intramolecular Reductive Coupling of Keto‐enamines: A Facile Synthesis of 2,3,5‐Trisubstituted Pyrroles[J]. Chinese Journal of Chemistry, 2003, 21(3): 336-338. DOI: 10.1002/cjoc.20030210323 |
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| Authors: | Fan Xue‐Sen Zhang Xin‐Ying Zhang Yong‐Min |
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| Abstract: | Promoted by low‐valent titanium reagent which was generated in situ from Sm/TiCl4 system, keto‐enamine derivatives underwent efficient intromolecular deoxygenative coupling reactions and afforded the corresponding 2,3,5‐trisubstituted pyrroles in moderate to good yields under mild reaction conditions. |
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| Keywords: | low‐valent titanium metallic samarium pyrrole reductive cyclization |
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