Process for the preparation of 2-chloro-5-chloromethylpyridine,

Details Process for the preparation of 2-chloro-5-chloromethylpyridine, Process for the preparation of 2-chloro-5-chloromethylpyridine,

1991-09-11

1992-05-26

Morris, Paticia L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21361

Patent

active

051169932

ABSTRACT:
A process for the preparation of a 2-chloro-5-chloromethyl-pyridine, of the formula (I) ##STR1## comprising reacting a 2-alkoxy-5-alkoxymethylpyridine derivative of the formula (II) ##STR2## in which R.sup.1 represents alkyl,
with a chlorinating agent, is appropriate, in the presence of a diluent and if appropriate, in the presence of a reaction auxiliary, at a temperature between 0.degree. C. and 200.degree. C.

REFERENCES:
patent: 4576629 (1986-03-01), Morland et al.
Snythesis of Heterocyclic Analogs of Methyldopa, J. W. Tilley et al., J. Heterocyclic Chem., 16, 333 (1979).
A Novel Transformation of 3-Alkoxyisoquinolines to 3-chloroisoquinolines and an unusual decyanation of 1,3-dialkoxy-4-cyano-5,6,7,8-tetrahydroisoquinolines under vilsmeier-Haack conditions, T. R. Kasturi et al., Synthesis, 1984, 743-745.

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