(+/-)-[η6-(3,3-dimethoxypropyl)benzene]tricarbonylchromium | 832711-93-0

• 英文名称: (+/-)-[η6-(3,3-dimethoxypropyl)benzene]tricarbonylchromium
• CAS: 832711-93-0
• 化学式: C₁₄H₁₆CrO₅
• 分子量: 316.274
• InChiKey: FROAJANOJMBFAO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为反应物：
  描述：

  (+/-)-[η6-(3,3-dimethoxypropyl)benzene]tricarbonylchromium 、 水 在 草酸 作用下， 以 水 、 丙酮 为溶剂， 以95%的产率得到(η6-(3-oxopropyl)benzene)tricarbonylchromium
  参考文献：
  名称：

  Lipase-mediated deracemization of secondary 1-phenyl-substituted propargylic alcohols of different topology

  摘要：

  Acetylation of (+/-)-1-phenylnon-2-yn-1-ol, (+/-)-1-phenylhept-1-yn-3-ol, and (+/-)-1-phenylundec-4-yn-3-ol ((+/-)-5) in the presence of lipase from Candida cylindracea (CCL) proceeds slowly to give products with ee less than or equal to20%. The acetates of these alcohols are hydrolyzed in the presence of porcine pancreatic lipase (PPL) equally unsatisfactorily. The (eta(6)-arene)tricarbonylchromium complex of alcohol (+/-)-5 is acetylated in the presence of CCL up to similar to22% conversion to give (R)-acetate whose oxidative decomplexation followed by saponification results in alcohol (R)-(-)-5 with ee greater than or equal to95%. The configuration of alcohols (-)-5 and (+)-5 was determined by NMR spectroscopy of their esters with (R)- and (S)-Mosher's acids.

  DOI：

  10.1023/b:rucb.0000035659.02761.1a
• 作为产物：
  描述：

  1,1-二甲氧基-3-苯基丙烷 、 六羰基铬 以 四氢呋喃 、 二丁醚 为溶剂， 以84%的产率得到(+/-)-[η6-(3,3-dimethoxypropyl)benzene]tricarbonylchromium
  参考文献：
  名称：

  Lipase-mediated deracemization of secondary 1-phenyl-substituted propargylic alcohols of different topology

  摘要：

  Acetylation of (+/-)-1-phenylnon-2-yn-1-ol, (+/-)-1-phenylhept-1-yn-3-ol, and (+/-)-1-phenylundec-4-yn-3-ol ((+/-)-5) in the presence of lipase from Candida cylindracea (CCL) proceeds slowly to give products with ee less than or equal to20%. The acetates of these alcohols are hydrolyzed in the presence of porcine pancreatic lipase (PPL) equally unsatisfactorily. The (eta(6)-arene)tricarbonylchromium complex of alcohol (+/-)-5 is acetylated in the presence of CCL up to similar to22% conversion to give (R)-acetate whose oxidative decomplexation followed by saponification results in alcohol (R)-(-)-5 with ee greater than or equal to95%. The configuration of alcohols (-)-5 and (+)-5 was determined by NMR spectroscopy of their esters with (R)- and (S)-Mosher's acids.

  DOI：

  10.1023/b:rucb.0000035659.02761.1a

文献信息

• Dearomative Aminocarbonylation of Arenes via Bifunctional Coordination to Chromium
  作者：Ming‐Yang Wang、Cheng‐Jie Wu、Wei‐Long Zeng、Xu Jiang、Wei Li

  DOI：10.1002/anie.202210312

  日期：2022.10.10

  A dearomative trifluoromethylative aminocarbonylation of arenes via bifunctional coordination to chromium has been firstly developed for amide construction, which expands the boundary of aminocarbonylations from conventional C=C bond substrates to arenes. Furthermore, a switchable 1,2-difunctionalization of arene C−H bonds and concise synthesis of amide-type drug analogs were successfully achieved

  芳烃通过双功能配位与铬进行脱芳构三氟甲基氨基羰基化反应，首先被开发用于酰胺结构，将氨基羰基化的边界从传统的 C=C 键底物扩展到芳烃。此外，成功实现了芳烃 C-H 键的可转换 1,2-双官能化和酰胺类药物类似物的简明合成。