2-Piperidones

Details 2-Piperidones 2-Piperidones

1983-05-20

1985-03-12

Schwartz, Richard A.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546345, C07D21140, C07D21142

Patent

active

045046646

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-methyl-pyridine desired. Also part of the invention are novel acyclic and cyclic intermediates used in the process.

REFERENCES:
patent: 3073834 (1963-01-01), Bortnick et al.
patent: 3875147 (1975-04-01), Choi

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