Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1991-06-14
1992-03-24
Rotman, Alan L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
546346, C07D21326
Patent
active
050990250
ABSTRACT:
A process for the preparation of 2-chloro-5-methylpyridine of the formula ##STR1## which comprises reacting 3-methyl-pyridine-1-oxide of the formula ##STR2## with a chlorinating agent of the formula ##STR3## in which R.sup.1 represents alkyl, halogenoalkyl, cycloalkyl, optionally substituted aryl, NR.sup.2 R.sup.3 or OR.sup.4 in which
REFERENCES:
patent: 4897488 (1990-01-01), Gallenkamp et al.
patent: 5010201 (1991-04-01), Kaufmann et al.
Chemical and Pharmaceutical Bulletin, vol. 36, No. 6, 1988, pp. 2244-2247.
Jelich Klaus
Kaufmann Dieter
Bayer Aktiengesellschaft
Rotman Alan L.
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