Process for the preparation of 4-chloroquinolines

Details Process for the preparation of 4-chloroquinolines Process for the preparation of 4-chloroquinolines

1978-09-15

1981-07-07

Daus, Donald G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546180, 562452, C07D21518, C07D21512, C07D21520, C07D21536

Patent

active

042776074

ABSTRACT:
Novel process for the preparation of 4-chloroquinolines of the formula ##STR1## wherein X is in the 5,6,7 or 8-position and is selected from the group consisting of hydrogen, methyl, halogen, CF.sub.3 --, CF.sub.3 O-- and CF.sub.3 S-- by reacting a compound of the formula ##STR2## or a functional derivative thereof with a chlorination agent in the presence of an oxidation agent and to a novel intermediate.

REFERENCES:
patent: 2451610 (1948-10-01), Campbell
patent: 2478125 (1949-08-01), Morthey et al.
patent: 2785165 (1957-03-01), Schock et al.
patent: 3567732 (1971-03-01), Soly et al.
Rugheimer, "Berichte", vol. 17, pp. 736-739 (1884) cited in Hollins "Syn. of Org. Nitrogen Cmpds.", p. 271 (1924).
Mathieu et al., "Cahiers de Synthese Organique", vol. VII, pp. 151-160 (1961).
Rugheimer, Ber., (1886) 19 p. 1172, cited in C. Hollins, "Synthesis of Nitrogen Ring Compounds", p. 331 (1924).

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