Blog

[9]Cycloparaphenylene: Nickel-Mediated Synthesis and Crystal Structure

Yasutomo Segawa, Petr Šenel, Sanae Matsuura, Haruka Omachi, and Kenichiro Itami

Chem. Lett. 2011, 40, 423–425. DOI: 10.1246/cl.2011.423 Selected as “Editor’s Choice”

 

Nickel-mediated synthesis of [9]cycloparaphenylene ([9]CPP) is described. L-shaped diphenylcyclohexane monomers underwent cyclotrimerization under the influence of Ni(cod)2/bipy. X-ray crystal structure analysis and VT NMR analysis of the thus-formed cyclic trimer confirmed its triangle structure and interesting cyclohexane-flipping behavior in solution. Cyclic trimer was converted to [9]CPP by acid-mediated aromatization. The first X-ray crystal structure of [9]CPP is also mentioned.

 

Related post

  1. Double-Helix Supramolecular Nano…
  2. C-H Activation Generates Period-…
  3. Macrocyclization by Rh-Catalyzed…
  4. Size-selective synthesis of [9]-…
  5. Hindered Biaryls by C–H Coupling…
  6. tert-Butoxide-Mediated C-H Bond …
  7. Strength of carbon nanotubes dep…
  8. C-H Activation Enables Rapid Str…

Twitter@Itami Lab

Itami Lab Facebook

Instagram@Itami Lab

最近の記事

Flickr@Itamilab

天池先輩からコーヒースープ伴夫妻からのお歳暮です!潤さん、宮村さん、ありがとうございます!!武藤さん、ビールありがとうございます!平賀大都わーいやなさん、あつしさん、ありがとうございます!!だいぶ前だけど、Stripes look #ootdHalloween lookラインを洗う時ですら格好良く。戸谷先生教育実習!imageけいしゅう、誕生日おめでとう!誕生日は英吉家!!3年生に名古屋ぼろ勝ちアピール中!!アリシア卒業おめでとう女子会!
PAGE TOP