Pentene derivatives

Details Pentene derivatives Pentene derivatives

1987-08-28

1988-11-22

Shippen, Michael L.

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

Organic compounds

Carboxylic acid esters

C07C 6963

Patent

active

047867507

ABSTRACT:
A method of preparing certain 2-halo-5-methylpyridines, useful as herbicide intermediates, is presented starting from acyclic pentenes. The pentene is difunctionalized, e.g., by making the epoxide, and is then reacted with a nitrogen source to close the ring. The nitrogen-containing 6-membered heterocycle may then be aromatized readily to produce the 2-halo-5-methylpyridine desired. Also part of the invention are novel acyclic and cyclic intermediates used in the process.

REFERENCES:
Isagulyants, Dokl. Akad. Nawk. Arm. SSR, 44 pp. 115-120 (1967).
Morrison, "Organic Chemistry," 3rd Ed., pp. 664-666 (1973).

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