4.5 Article

Synthesis of Bis-BINOL Derivatives: Linking via the 3-, 4-, or 5-Position by Generation of Suitable C1-Symmetric Precursors

期刊

SYNTHESIS-STUTTGART
卷 52, 期 6, 页码 853-860

出版社

GEORG THIEME VERLAG KG
DOI: 10.1055/s-0039-1690763

关键词

BINOL; C-1-symmetric; substitution; bromination; linking

资金

  1. Fonds der Chemischen Industrie [Li 193/02]
  2. Evonik Industries AG

向作者/读者索取更多资源

Bis-BINOL derivatives have proven highly useful in applications such as chemosensing or organocatalysis. In this account, we describe strategies for the linking of BINOL units via the 3-, 4-, or 5-positions, showing that unique synthetic strategies are necessary to address each position. We report the synthesis of suitable C-1-symmetric precursors, which are generated either by monohalogenation or by monodeprotection of C-2-symmetric starting materials, and their subsequent coupling to give linked bis-BINOL derivatives.

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