Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1996-11-20
1998-11-24
Rotman, Alan L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
546182, 546329, 546330, 546334, 546335, C07D22104, C07D213127, C07D21326, C07D21510
Patent
active
058409025
ABSTRACT:
.beta.-Hydroxyalkylpicolinium salts of the formula (I) ##STR1## wherein A, R.sup.1 to R.sup.3 and X have the meanings given in the description, which are obtained by reaction of picolines of the formula (II) ##STR2## with alkylene oxides of the formula (III) in the presence of a 1- to 3-basic acid and in water or an organic solvent as the reaction medium and are used as intermediate products for the preparation of cationic dyestuffs, and dyestuff preparations comprising such cationic dyestuffs.
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J. Am. Chem. Soc., Bd., 71, 1949, Washington, Seiten 3498 -3500, XP000652725, King, L.C., et al.: "Reactions of 1,2-Expoxides with Salts of Organic Bases. I. Styrene Oxide", * p. 3499, Table I *.
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Ditzer Reiner
Gassen Karl-Rudolf
Gerdes Carsten
Klein Lothar
Meisel Karlheinrich
Bayer Aktiengesellschaft
Rotman Alan L.
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