Unsymmetrical α,ω-Difunctionalized Long-Chain Compounds via Full Molecular Incorporation of Fatty Acids was written by Witt, Timo;Stempfle, Florian;Roesle, Philipp;Haeussler, Manuel;Mecking, Stefan. And the article was included in ACS Catalysis in 2015.Product Details of 3903-40-0 This article mentions the following:
α,ω-Difunctionalized long-chain compounds A-(CH2)n-B are valuable intermediates and monomers. Unsym. compounds with two different functional groups (A ≠ B) are, however, only accessible by multistep traditional organic syntheses to date. We report on their generation in a single step by isomerizing alkoxycarbonylations of the double bond deep in the chain of oleic derivatives The compatibility with amide, nitrile and imide functionalities in the substrate allows for the formation with high linear selectivities (ca. 90%) and conversions (70 to 96%) of unsym. diesters, ester-amides, ester-nitriles and ester-(N-imides) in which these functional groups are terminally attached to a ≥ 17 methylene unit chain. These products further provide access to carboxylic acid-esters, alc.-esters and amino-esters, and polymers from these AB-monomers. Undesired transesterifications that scramble the A and B functionalities are suppressed completely (<0.1%) by the utilization of a Pd(II) catalyst precursor devoid of acid additives in the presence of amine base. In the experiment, the researchers used many compounds, for example, 12-Methoxy-12-oxododecanoic acid (cas: 3903-40-0Product Details of 3903-40-0).
12-Methoxy-12-oxododecanoic acid (cas: 3903-40-0) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Product Details of 3903-40-0
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics