| Syntheses of Some 3—[1′（1′H）—Substituent—pyrazol—5′—yl] benzo [5,6] coumarins |
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| 引用本文： | EL－DEEN，IbrahimMohey AL－WAKEEL，El－SayedIsmail 等.Syntheses of Some 3—[1′（1′H）—Substituent—pyrazol—5′—yl] benzo [5,6] coumarins[J].中国化学,2002,20(7):670-675. |
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| 作者姓名： | EL－DEEN，IbrahimMohey AL－WAKEEL，El－SayedIsmail |
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| 作者单位： | [1]FacultyofEducation,SuezCanalUniversity,Port－Said,Egypt [2]FacultyofScience,SuezCanalUniversity,Ismailia,Egypt |
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| 摘 要： | 3-1′(1′H)-Substituent-pyrazol-5′-yl]benzo5,6]coumarins and 3-(1′,2′-oxazol-5′-yl)benzo5,6]coumarin were prepared via condensation of 3-(2′-formyl-1′-chlorovinyl)benzo5,6] coumarin with hydrazine derivatives or hydroxylamine.Reaction of 3-1′(1′H)-pyrazol-5′-yl]benzo5,6]coumarin with alkyl halides,olefinic compunds or acid chlorides are described.
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| 关 键 词： | 架环合成 3－[1′（1′H）－取代－吡唑基－5′]苯并[5 6]香豆素 卤化烷 |
Syntheses of Some 3‐[1′ (1′ H)‐Substituent‐pyrazol‐5′‐yl] benzo [5,6]coumarins |
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| Ibrahim Mohey El‐Deen,El‐Sayed Ismail Al‐Wakeel,Ahmed Gad El‐Mawla.Syntheses of Some 3‐[1′ (1′ H)‐Substituent‐pyrazol‐5′‐yl] benzo [5,6]coumarins[J].Chinese Journal of Chemistry,2002,20(7):670-675. |
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| Authors: | Ibrahim Mohey El‐Deen El‐Sayed Ismail Al‐Wakeel Ahmed Gad El‐Mawla |
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| Abstract: | 3‐1′ (1′ H)‐Substituent‐pyrazol‐5′‐yl] benzo 5,6] coumarins and 3‐(1′,2′‐oxazol‐5′‐yl)benzo5,6]coumarin were prepared via condensation of 3‐(2′‐formyl‐1′‐chlorovinyl) benzo 5,6] coumarin with hydrazine derivatives or hydroxylamine. Reaction of 3‐1′(1′ H)‐pyrazol‐5′‐yl] benzo 5,6] coumarin with alkyl halides, olefinic compounds or acid chlorides are described. |
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| Keywords: | heterocycle synthesis pyrazol‐5′‐ylbenzo [5 6] coumarin alkylation at pyrazole nitrogen |
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