| 212078-94-9

• CAS: 212078-94-9
• 化学式: C₂F₃O₂*C₂₆H₅₁NO₉P₂Re
• 分子量: 882.863
• InChiKey: HBXMNIIHPSBWCH-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 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：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  、 苯甲醛 、 三氟乙酸 以 二氯甲烷-D2 为溶剂， 生成
  参考文献：
  名称：

  NMR evidence for formation of new alcohol rhenium complexes as intermediates in ionic hydrogenations of carbonyl groups with systems composed of ReH2(NO)(CO)(PR3)2 (R = Pri, CH3, OPri) and CF3COOH

  摘要：

  Low-temperature hydrogenations of benzaldehyde and acetone by systems ReH2(CO)(NO)(PR3)(2)/CF3COOH in CD2Cl2 with R = Pr-i (1a), CH3 (1b) and OPri (1c) result in formation of the new unstable alcohol complexes [ReH(CO) (NO)(PR3)(2)(R*OH) ](+)[CF3COO](-) (R* = C6H5CH2, (CH3)(2)CH) characterized by the low-temperature NMR spectra. Heating the reaction solutions above 210-240 K leads to alcohol elimination to form monohydrides ReH(CO)(NO)(PR3)(2)(CF3COO). Hydrogenation rates decrease in the order 1b > 1c > 1a and C6H5CH=O > (CH3)(2)C=O. Hydrogenation processes remain effective under H-2 (or D-2) atmosphere and in the presence of an excess of CF3COOH when the dihydrides exist as dihydrogen compounds [ReH(H-2)(CO)(NO)(PR3)(2)](+)[CF3COO](-). Relative acidity of the dihydrogen complexes decreases in the order OPri > Pr-i > CH3. The hydrogenation with dihydrogen complexes is discussed in terms of an ionic mechanism. (C) 1998 Elsevier Science S.A. All rights reserved.

  DOI：

  10.1016/s0020-1693(98)00013-9