PL51547B3 - - Google Patents

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Publication number
PL51547B3
PL51547B3 PL105373A PL10537364A PL51547B3 PL 51547 B3 PL51547 B3 PL 51547B3 PL 105373 A PL105373 A PL 105373A PL 10537364 A PL10537364 A PL 10537364A PL 51547 B3 PL51547 B3 PL 51547B3
Authority
PL
Poland
Prior art keywords
alkyl
derived
dicarboxylic acids
aromatic dicarboxylic
residue
Prior art date
Application number
PL105373A
Other languages
Polish (pl)
Original Assignee
Chemische Werke Witten Gmbh
Filing date
Publication date
Application filed by Chemische Werke Witten Gmbh filed Critical Chemische Werke Witten Gmbh
Publication of PL51547B3 publication Critical patent/PL51547B3/pl

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Claims (1)

1. Zastrzezenie patentowe Sposób wytwarzania amidów estrów karbocy- klicznych aromatycznych kwasów dwukarboksylo- wych o grupach karboksylowych w polozeniu meta i para, zwlaszcza kwasu izoftalowego i tereftalo- wego, polegajacego na poddaniu reakcji estrów me- tylo-arylowych karbocyklicznych aromatycznych kwasów dwukarboksylowych z amoniakiem albo mono- lub dwuaminami pierwszorzedowymi lub drugorzedowymi, najkorzystniej w ilosciach równo- 5 waznikowych, w obojetnych rozpuszczalnikach or¬ ganicznych, zwlaszcza w weglowodorach aromatycz¬ nych, w temperaturze 0—150°C, zwlaszcza w tem¬ peraturze 60—100°C, wedlug patentu nr 50769, zna¬ mienny tym, ze reakcji poddaje sie estry alkilo- io arylowe, w których reszta alkilowa jest pochodna nasyconych alkoholi alifatycznych o lancuchu pro¬ stym lub rozgalezionym o 2—5 atomach wegla, na¬ tomiast reszta arylowa jest pochodna fenolu i (lub) naftolu i (lub) fenoli i (albo) naftoli majacych jeden 15 lub wiecej podstawników w postaci grup alkilo¬ wych i (lub) grup aryloalkilowych. PL PL PL PL PL PL1. Claim A method for the preparation of amides of carbocyclic aromatic dicarboxylic acids with carboxyl groups in the meta and para positions, especially isophthalic and terephthalic acids, by reacting methyl aryl esters of carbocyclic aromatic dicarboxylic acids with ammonia or primary or secondary mono- or diamines, most preferably in equivalent amounts, in inert organic solvents, especially in aromatic hydrocarbons, at a temperature of 0-150 ° C, especially at 60-100 ° C, according to Patent No. 50769, characterized by reacting alkyl and aryl esters in which the alkyl residue is derived from saturated aliphatic alcohols with a straight or branched chain with 2 to 5 carbon atoms, while the aryl residue is derived from phenol and / or naphthol and / or phenols and / or naphthols having one or more alkyl substituents and / or arylalkyl groups. PL PL PL PL PL PL
PL105373A 1964-08-01 PL51547B3 (en)

Publications (1)

Publication Number Publication Date
PL51547B3 true PL51547B3 (en) 1966-04-25

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