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化学学报
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化学学报 ›› 1990, Vol. 48 ›› Issue (2): 110-115. 上一篇    下一篇

研究论文

羰基铁-硫醇-三乙胺反应体系的研究, μ-酰基与μ-烯基铁硫配合物的合成系脱羰反应动力学

宋礼成;刘全亭;王积涛   

  1. 南开大学化学系
  • 发布日期:1990-02-15

Studies on reaction of iron carbonyl-mercaptan-triethylamine system: synthesis of μ-acyl or μ-alkenyl Fe-S complexes and kinetics for CO extrusion reaction

SONG LICHENG;LIU QUANTING;WANG JITAO   

  • Published:1990-02-15

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本文由反式巴豆酰氯与活性中间物[(μ-CO)(μ-R1S)Fe2(CO)6]ˉEt3N^+反应, 合成了两个新的μ-酰基铁硫配合物(μ-R1S)(μ-CH5CH=CHCO)Fe2(CO)6(R1=Et, Bu^t)和三个新的μ-烯基铁硫配合物(μ-R1S)(μ-CH3CH=CH)Fe2(CO)6(R1=Et, Bu^+, CH2=CHCH2), 此外还研究了μ-酰基配合物脱羰生成μ-烯基配合物的反应动力学, 证明为一级反应, 并求得在一定条件下的速率常数和半衰期。

关键词: 硫醇, 反应动力学, 烯烃, 铁络合物, 铁络合物, 半衰期, 羰基化合物, 反应速度常数, 硫络合物, 酰基

Two new m-acyl Fe-S complexes (m-R1S)(m-CH3CH:CHCO)Fe2(CO)6 (R1 = Et, tert-Bu) and three new m-alkenyl complexes (m-R1S)(m-CH3CH:CH)Fe2(CO)6 (R1 = Et, tert-Bu, CH2:CHCH2) have been synthesized by reactions of trans-crotonyl chloride with active intermediates [(m-CO)(m-R1S)Fe2(CO)6]- Et3N+H. The kinetics of CO extrusion reaction of m-acyl complexes to form m-alkenyl complexes has been investigated and showed that this type of reaction is first-order. The rate constants and half-life of the reactants have been calculated

Key words: MERCAPTAN, REACTION KINETICS, ALKENE, IRON COMPLEX, IRON COMPLEX, HALF LIFE, CARBONYL COMPOUNDS, REACTION RATE CONSTANT, SULFIDE COMPLEX, ACYL GROUP

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