| 二茂二氯化钛存在下炔烃的还原反应 |
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| 引用本文： | 刘以寅,陈美文. 二茂二氯化钛存在下炔烃的还原反应[J]. 化学学报, 1988, 46(7): 703-705 |
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| 作者姓名： | 刘以寅 陈美文 |
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| 作者单位： | 南开大学元素有机化学研究所 |
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| 摘 要： | 研究了双取代乙炔在二茂二氯化钛存在下被异丁基溴化镁格氏试剂还原生成烯烃的过程. 结果表明, 二苯乙炔还原后几乎得到专一的Z-二苯乙烯, 但多数炔烃还原后主要产物为E式烯烃, Z,E异构体的比例与底物炔烃的性质及位阻有关. 本文还报导了以双取代乙炔为底物, 径钛氢化反应合成了9组烯烃异构体混合物, 并对其结构进行了分析鉴定.
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| 关 键 词： | 催化剂 炔烃 环戊二烯P 烯烃 异丁基 溴代烃 氧化物 立体选择性 金属茂络合物 还原反应 |
Reduction of ethynes in the presence of Cp2TiCl2 |
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| LIU YIYIN,CHEN MEIWEN. Reduction of ethynes in the presence of Cp2TiCl2[J]. Acta Chimica Sinica, 1988, 46(7): 703-705 |
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| Authors: | LIU YIYIN CHEN MEIWEN |
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| Abstract: | Some disubstituted acetylenes were reduced to ethylenes by Me2CHCH2MgBr in the presence of Cp2TiCl2. The stereoselectivity of the reduction was studied and some factors that influences stereoselectivity of the reduction were suggested. Spectral characteristics of the ethylenes were discussed. |
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| Keywords: | CATALYST ALKYNE CYCLOPENTADIENE P ALKENE ISOBUTYL GROUP BROMOHYDROCARBON OXIDE STEREOSELECTIVITY METALLOCENES REDUCTION REACTION |
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