Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1979-12-18
1983-08-16
Waltz, Thomas A.
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
564143, C07C103375
Patent
active
043993060
ABSTRACT:
The invention relates to an improved method for the preparation of a 2',6'-dialkyl-N-alkoxymethyl-2-chloro-acetanilide compound of the general formula (I), ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are identical or different and stand for straight-chained or branched C.sub.1-4 alkyl groups.
According to the invention a dialkyl aniline of the general formula (II), ##STR2## wherein R.sub.1 and R.sub.2 are as defined above, is treated with aqueous formaldehyde solution in an apolar solvent at a temperature of 30.degree. to 80.degree. C., the solution of the resulting oxymethyl derivative formed with said apolar solvent is separated from the aqueous formaldehyde solution at an elevated temperature and then dehydrated, the resulting azomethine derivative is reacted with chloroacetyl chloride in the same apolar solvent medium, the resulting chloromethyl compound is reacted with an alcohol of the general formula (V),
REFERENCES:
patent: 2863752 (1958-12-01), Hamm et al.
patent: 3268324 (1966-08-01), Hamm et al.
patent: 3347858 (1967-10-01), Szarvasi et al.
patent: 3442945 (1969-05-01), Olin
patent: 3547620 (1970-12-01), Olin
patent: 3630716 (1971-12-01), Olin
patent: 3637847 (1972-01-01), Olin
patent: 3875228 (1975-04-01), Rathgeb et al.
patent: 3937730 (1976-02-01), Vogel et al.
patent: 4070179 (1978-01-01), Vogel et al.
patent: 4261733 (1981-04-01), Chupp
patent: 4283221 (1981-08-01), Vogel et al.
patent: 4284564 (1981-08-01), Alt et al.
Foreign Patent Journal, Belgium, Recueil Des Brevets d'Invention, Jan.-Feb. 1978, p. 377. Belgian Patent No. 862,713.
Derwent, Belgium Abstracts, 47734A/27 Belgian Patent No. 862,413.
Chemical Abstracts, "Patent Concordance", vol. 90, 1979, 24PC & 253 PC.
Domjan nee Pinter Kornelia
Gyorfi Bela
Haas Andras
Huszak Gyorgy
Kolonics Zoltan
Mta Mezogazdasagi Kutato Intezet
Nehezvegyipari Kutato Intezet
Nitrokemia Ipartelepek
Waltz Thomas A.
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