Synthesis p. 2839 - 2843 (2003)
Update date:2022-08-02
Topics:
Cheng, Ying
Wang, Bo
Meth-Cohn, Otto
The title compounds, namely 8,8′-bis-5,6,11,12-tetrahydrodibenzo[b,f] [1,5]diazocines, have been synthesized in 36-81% yields through a one-pot reaction by treatment of N,N,N′,N′-tetramethylbiphenyldiamine with the Vilsmeier's reagents derived from substituted N-methylformanilides and POCl3. This was another application of 't-amino effect' in the synthesis of eight-membered ring systems. These products are designed as the precursors of novel macrocycles.
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