Benzocycloalkenderivatives substituted in 1-position by carboxyl and carboxyalkyl or two carboxyl groups, and further substituted in the benzene ring by cycloalkyl and optionally other substituents, their esters, amides and pharmaceutically acceptable salts have antiinflammatory and analgesic activity and ...
ChemInform Abstract: HALOGEN- AND NITROGEN-CONTAINING DERIVATIVES OF ALIPHATIC CARBOXYLIC ACIDS. PART XI. REACTION OF LONG-CHAINED α,α′-DIBROMOALKANE-DI... ChemInform Abstract: HALOGEN- AND NITROGEN-CONTAINING DERIVATIVES OF ALIPHATIC CARBOXYLIC ACIDS. PART XI. REACTION OF LONG-CHAINED α,α′-...
Performing the cleavage with an alcohol or an amine yielded the corresponding α-chlorinated esters and α-chlorinated amides, respectively. A new and mild one-pot procedure to synthesize α-chloro carboxylic acids,α,α′-dichloro dicarboxylic acids and their derivatives is reported. The ...
Synthesis of 3-Substituted Tetrahydrofuran and 4-Substituted Tetrahydropyran Derivatives by Cyclization of Dicarboxylic Acids with InBr3/TMDS doi:10.1002/ejoc.201200727An efficient reduction followed by cyclization of diacid compounds with the InBr3/TMDS system is reported. This system allows the...
Process for the manufacture of derivatives of aliphatic dicarboxylic acids United States Patent 3215726 Inventors: Kurt, Sennewald Alexander, Ohorodnik Hugo, Gudernatsch Hermann, Vierling Application Number: US19725662A Publication Date: 11/02/1965...
I and salts, esters and amides thereof, in which R1 and R2 represent hydrogen, alkyl or alkenyl (1-4 C), R3 represents hydrogen, halogen, hydroxy, alkyl (1-4 C) or alkoxy (1-4 C), n has the value 0, 1 or 2 and ALK is a saturated or unsaturated hydrocarbon radical with 3-12...
The dicarboxylic acids and their derivatives containing a cycle, imidazolidine - 4,5 - dione, and for their preparationDicarboxylic acids and dicarboxylic acid derivatives which contain N,N- imidazolidine-4,5-diones are useful monomers for the manufacture of polymers, in particular polyesters....
Methods for production of aromatic dicarboxylic acids and derivatives thereofProvided are methods for the production of isophthalic acid (IP A) and derivatives thereof. The methods are based on the addition of beta propiolactone to furfural or a derivative thereof. Provided are cost effective routes ...
Dicarboxylic acids derivatives containing a nitrogen or oxygen heteroring, process for their preparation and their use as medicinesCompounds (I): …… in which ……- the broken lines denote an optional endo or exo double bond; …- R1 and R2 denote a hydrogen, an alkyl, alkenyl, alkynyl (-...
Dicarboxylicacids (DCAs) are highly value-added chemicals andintermediates extensively applied in various fields of the chemicalindustry. Transformation of the renewable and abundant biomass andits derivatives is viewed as a promising and sustainable process forDCA production, thus being paid considerable ...