高等学校化学学报 ›› 1986, Vol. 7 ›› Issue (10): 889.

• 研究论文 • 上一篇    下一篇

(μ-巯基)(μ-烃硫)六羰基二铁Michael型反应的研究(Ⅱ)—(μ-β-腈乙基硫)(μ-烃硫)六羰基二铁的合成及Michael反应机量

宋礼成, 胡青眉, 赵玉田, 王积涛   

  1. 南开大学化学系
  • 收稿日期:1985-07-13 出版日期:1986-10-24 发布日期:1986-10-24
  • 基金资助:

    中国科学院科学基金

Studies on Michael-Type Reaction of (μ-Mercapto) (μ-Alkylthio) Bis (Tricarbonyliron) (Ⅱ)—Synthesis of (μ-β-Cyanoethylthio) (μ-Alkylthio)-bisTricarbonyliron) and Mechanism of the Michael-type Reaction

Song Licheng, Hu Qingmei, Zhao Yutian, Wang Jitao   

  1. Department of Chemistry, Nankai University, Tianjin
  • Received:1985-07-13 Online:1986-10-24 Published:1986-10-24

摘要: 一系列(μ-巯基)(μ-烃硫)六羰基二铁(μ-HS)(μ-RS)Fe2(CO)6,在六氢吡啶、三氟醋酸或中性条件下同丙烯腈能发生Michael型反应,生成非对称型含μ-β-腈乙基新颖铁硫原子簇络合物,(μ-RS)(μ-NCCH2CH2S)Fe2(CO)6。确定了所有络合物的结构及某些络合物的构象体种类和比例。并对该反应的自诱导、碱诱导和三氟醋酸抑制反应的机理进行了初步讨论。

Abstract: A Michael-type reaction of a series of-(μ-mercapto)(μ-alkylthio)bis(tricar-bonyliron)s,(μ-HS)(μ-RS)Fe2(CO)6,with acrylonitrile can occur under piperi-dine,trifluoroacetic acid or neutral conditions to afford unsymmetrically novel Fe-Scluster complexes,(μ-NCCH2CH2S)(μ-RS)Fe2(CO)6.By elemental analysis,]Rand 1HNMRspectroscopy structures of all the complexes were confirmed and the numbers and ratios of the conformers of some complexes were also determined.In addition,mechanisms of the Michaeltype reaction,being base-induced,self-induced and CF3CO2H-repressed,have been preliminarily discussed.

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