BF3 ⋅ Et2O‐Mediated Annulation of 2‐Alkynyl Biaryls with N‐(Arylthio) Succinimides: An Efficient Approach to Access 9‐Sulfenylphenanthrenes

European Journal of Organic Chemistry(2023)

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摘要
Abstract A simple and effective method for the synthesis of 9‐sulfenylphenanthrenes was developed via BF 3 ⋅ OEt 2 ‐mediated annulation of 2‐alkynyl biaryls with N ‐arylthio succinimides at room temperature. Through this methodology, a series of 9‐sulfenylphenanthrenes could be efficiently and conveniently obtained in good to excellent yields under mild and metal‐free conditions.
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succinimides
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