Preparation of 2-chloro-5- methyl-pyridine

Details Preparation of 2-chloro-5- methyl-pyridine Preparation of 2-chloro-5- methyl-pyridine

1991-01-23

1992-04-07

Ivy, C. Warren

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21326

Patent

active

051030110

ABSTRACT:
In the preparation of 2-chloro-5-methyl-pyridine of the formula ##STR1## by reacting 3-methyl-pyridine-1-oxide of the formula ##STR2## with a chlorinating agent, the improvement which comprises effecting the reaction in the presence of a chlorinating agent of the formula ##STR3## in which A represents oxygen or the grouping ##STR4## in which R.sup.2 and R.sup.3 individually represent alkyl, cycloalkyl or aryl or together represent alkanediyl or oxaalkanediyl and

REFERENCES:
patent: 4404388 (1983-09-01), Fah et al.
patent: 4778896 (1988-10-01), Gallenkamp
patent: 4897488 (1990-01-01), Gallenkamp et al.
Chemistry of Heterocyclic Compounds, vol. 14, Supplement, pp. 111-114.

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