Method of preparation of bis-quinolines

Details Method of preparation of bis-quinolines Method of preparation of bis-quinolines

1995-06-06

1996-07-02

Springer, David B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D40104

Patent

active

055323740

ABSTRACT:
Methods are provided for preparing bis-quinoline compounds, which include the steps of (1) condensing an aromatic 2-amino carbonyl compound and a methylene ketone compound to form an intermediate comprising a substituted quinoline having one chloro, one bromo, or one iodo substituent, followed by (2) reductive coupling of the quinoline, without its prior isolation or purification, using a transition metal catalyst, to thereby form the bis-quinoline compound.

REFERENCES:
patent: 4400499 (1983-08-01), Colon
Colon et al., "High Molecular Weight Aromatic Polymers by Nickel Coupling of Aryl Polychlorides," J. Polym. Sci., Part A; Polym. Chem., 1990, vol. 28, pp. 367-383.
J. K. Stille, "Polyquinolines," Macromolecules 1981, vol. 14, pp. 870-880.

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