| 1520044-93-2

• CAS: 1520044-93-2
• 化学式: C₂₀H₂₂ClCrN₄
• 分子量: 405.87
• InChiKey: GLGRQCQGQMKXBV-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  1,2-二氨基环己烷 在 palladium on activated charcoal 、 氢气 、 sodium hydride 作用下， 以 四氢呋喃 、 乙醇 为溶剂， 20.0 ℃ 、100.0 kPa 条件下， 反应 5.0h， 生成
  参考文献：
  名称：

  Novel chromium (III) complexes with N4-donor ligands as catalysts for the coupling of CO2 and epoxides in supercritical CO2

  摘要：

  New neutral and cationic chromium(III) complexes with N4 Schiff base ligands have been prepared and characterized. These complexes are active catalysts for the cycloaddition of CO2 and styrene oxide in CH2Cl2 solutions, affording epoxide conversions in a 39-92% range, with encouraging cyclic carbonate yields (up to 63%). It is to notice that the cationic species were significantly more active than their neutral analogs. Addition of tetrabutylammonium halides improved the selectivity toward styrene carbonate (87% yield). Dichloromethane could be avoided using solvent free or supercritical carbon dioxide as a solvent (scCO(2)) and, moreover, this improved the catalytic activity of the cationic complexes (TOF up to 652h(-1)). Using scCO(2), these chromium catalysts afforded the rapid and selective formation of cyclic carbonates from the coupling of CO2 to various linear terminal epoxides, such as epichlorydrin, propylene oxide and long chain terminal oxiranes. Coupling of cyclohexene oxide and carbon dioxide led to mixtures of poly(cyclohexene) carbonate and cyclic carbonate depending on the conditions (pressure and co-catalyst/catalyst ratio). Poly(cyclohexene) carbonate was isolated with a productivity 388 g/g Cr. Selective formation of the cyclic cyclohexene carbonate was obtained working under scCO(2) conditions. (C) 2013 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.molcata.2013.10.021