6524-49-8Relevant academic research and scientific papers
Process for the production of hydroxyalkylphenyl derivatives
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, (2008/06/13)
An improved process for the production of hydroxyalkylphenyl derivatives, especially esters and amides containing hydroxyalkylphenyl groups is disclosed, which process comprises gradually adding methyl acrylate, in the presence of an alkaline catalyst, to the alkyl substituted phenolic compound, and adding to the resultant reaction mixture a suitable alcohol or amine, optionally in the presence of a second catalyst which is different from the first catalyst. The improved process results in good yields and in a reduction of undesirable by-products while avoiding isolation of the intermediates.
Process for the production of hydroxyalkylphenyl derivatives
-
, (2008/06/13)
An improved process for the production of hydroxyalkylphenyl derivatives, especially esters containing hydroxyalkylphenyl groups is disclosed, which process comprises gradually adding methyl acrylate, in the presence of an alkaline catalyst, to the alkyl substituted phenolic compound and a suitable alcohol. The improved process results in good yields and in a reduction of undesirable by-products while avoiding isolation of the intermediates.
Polyalkylene glycol esters of hindered phenols substituted alkanoic acid
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, (2008/06/13)
Compounds of the formula: EQU1 WHEREIN X is oxygen or sulfur, a is an integer from 2 to 6, b is an integer from 3 to 40, and R is SPC1 Wherein R1 is an alkyl group of 1 to 8 carbon atoms, R2 is hydrogen or an alkyl group of 1 to 8 carbon atoms, and X is an integer from 0 to 6 Are useful as antioxidants for organic materials normally subject to oxidative deterioration, such as polyacetals, polypropylene, and nylon, in amounts of from about 0.005 to about 5% by weight of the composition.
4-Hydroxy-3,5-di-alkyl-phenyl-propionic acid composition suitable as lipid lowering and anti-diabetic agents
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, (2008/06/13)
Pharmaceutical compositions acting on the metabolism which contain as active derivatives of the 4-hydroxy-3,5-di-akylphenyl-propionic acid corresponding to the formula I and II EQU1 wherein R1 and R2 which may be identical or different, each stands for an alkylradical having 1 to 8 carbon atoms, R3 stands for an alkylene radical having 2 to 12 carbon atoms, X stands for hydroxy, alkoxy having 1 to 18 carbon atoms, phenalkoxy having 1 to 4 alkyl carbon atoms, cycloalkoxy having 5 to 8 carbon atoms, --NR4 R5 in which R4 stands for an alkyl group having 1 to 18 carbon atoms, R5 stands for a hydrogen atom or R4 and R5 may form with the nitrogen atom a heterocyclic six-membered ring which may carry another hetero atom and n is an integer from 2 to 4 and process for preparing them.
