4.8 Article

Synthesis, Resolution, and Stabilities of a Cationic Chromenoxanthene [4]helicene

Journal

ORGANIC LETTERS
Volume 12, Issue 8, Pages 1748-1751

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ol1003466

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Funding

  1. Swiss National Science Foundation
  2. State Secretariat for Education and Research

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1,13-Dimethoxychromenoxanthenium, a key intermediate in the synthesis of the classical trioxatriangulenium cation, was isolated and characterized for the first time. This [4]helicene was resolved through a CSP-HPLC procedure, with chemical and configurational stabilities being determined and compared.

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