| (μ-RS)(μ-XMgS)Fe2(CO)6或(μ-LiS)2Fe2(CO)6对环氧乙烷、环氧氯丙烷的亲核开环及产物的析离、鉴定 |
| NUCLEOPHILIC RING-OPENING OF ETHYLENE OXIDE AND EPICHLOROHYDRIN BY (μ-RS)(μ-XMgS)Fe2(CO)6 OR (μ-LiS)2Fe2(CO)6 ISOLATION AND CHARACTERIZATION OF THE CORRESPONDING PRODUCTS |
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| 摘要: 本文表明(μ-RS)(μ-XMgS)Fe2(CO)6(R=Me,X=I;R=Et,X=Br)或(μ-LiS)2Fe2(CO)6能顺利地对环氧乙烷、环氧氯丙烷进行亲核开环反应,且开环中间物经原位(in situ)醇解生成四新β-羟乙基铁硫配合物:(μ-CH3S)〔μ-ClCH2CH(OH)CH2S〕Fe2(CO)61,(μ-C2H5S)(μ-HOCH2CH2S)Fe2(CO)62,(μ-HOCH2CH2S)2Fe2(CO)64,[μ-ClCH2CH(OH)CH2S]2Fe2(CO)65.配合物1的结构由元素分析、IR和1HNMR直接证实,配合物2、4、5的结构是由鉴定其三苯膦衍生物而间接得到证实。本文还对环氧氯丙烷的开环方向进行了简要讨论。 |
| 关键词: 环氧乙烷 环氧氯丙烷 亲核开环 铁硫配合物 三苯膦配体 |
| 基金项目: 国家自然科学基金 |
| Abstract: It has been found that β-hydroxylethyl Fe-S complexes can be prepared through nucleophilic ring-opening reaction of ethylene oxide and epichlorohydrin by (μ-RS) (μ-XMgS)Fe2(CO)6(R=Me, X = I; R = Et, X = Br) or (μ-LiS)2Fe2(CO)6, followed by in sits alcoholysis of the intermediates. The β-hydroxylethyl Fe-S complexes prepared by this meth od are (μ-CH3S)[μ-ClCH2CH(OH)CH2Sl2Fe2(CO)6 1,(μ-C2H5S)(μ-HOCH2CH2S)Fe2(CO)6 (μ-HOCH2CH2S)2Fe2(CO)64 and [μ-ClCH2CH(OH)CH2S]2Fe2(CO)65. The structures of complexes 2,4 and 5 have been indirectly confirmed by PPh3-substituted derivatives 3,6and 7, whereas the structure of complex 1 directly confirmed by elemental analysis, IR and 1HNMR spectroscopy. In addition, the ring-opening direction of epichlorohydrin has also been dis cussed briefly. |
| Keywords: ethylene oxide epichlorobydrin nucleophilic ring-opening Fe-S complex PPh3 ligand |
| 投稿时间：1988-01-25 |
| 摘要点击次数: 1485 |
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| 宋礼成,胡青眉,董庆,王京端.(μ-RS)(μ-XMgS)Fe2(CO)6或(μ-LiS)2Fe2(CO)6对环氧乙烷、环氧氯丙烷的亲核开环及产物的析离、鉴定[J].无机化学学报,1990,6(3):256-260. |
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