6624-68-6Relevant academic research and scientific papers
The synthesis of di-carboxylate esters using continuous flow vortex fluidics
Britton, Joshua,Dalziel, Stuart B.,Raston, Colin L.
, p. 2193 - 2200 (2016/04/19)
A vortex fluidic device (VFD) is effective in mediating the synthesis of di-esters at room temperature. Processing under ambient conditions allows for a simple and efficient synthesis, whilst operating under continuous flow addresses scalability. The rotational speed of the sample tube and the flow rate were critical variables during reaction optimization, and this relates to the behaviour of the fluid flow at a molecular level. Whilst at specific rotational speeds the tube imparts a vibrational response into the fluid flow, the flow rate dictates residence time and the ability to maintain high levels of shear stress. The combination of mechanically induced vibrations, rapid micromixing, high levels of shear stress and water evaporation results in yields up to 90% for 3.25 minutes or less residence time. These results are key for devising greener and more efficient processes both mediated by the VFD and other continuous flow platforms.
METHODS AND COMPOSITIONS INVOLVING ESTERS OF AZELAIC ACID AND OTHER DICARBOXYLIC ACIDS
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Page/Page column 19, (2008/06/13)
The present invention relates to formulations of azelaic acid esters and other dicarboxylic acid esters, and their derivatives. In preferred embodiments, the esters have the general Formula (I) wherein R1 and R2 are selected from hydrogen, alkyl groups of up to about 18 carbon atoms and aryl groups of up to about 18 carbon atoms and alkylene group of up to about 18 carbon atoms and an arylene group of up to about 18 carbon atoms. The alkyl, aryl, alkylene and aryl groups may be substituted or unsubstituted, branched or straight chains. In addition, R1 and R2 may contain heteroatoms and may be straight chained or branched, n is an integer from 1-16, and R1 and R2 are not simultaneously hydrogen. R2OOC-(CH2)n-COOR1 (I). The azelaic acid derivatives of Formula I of this invention are certain derivatives of azelaic acid and other alkyl geminal diacids which possess a desirable high lipophilicity and biphasic solubility in comparison to the parent compound, azelaic acid, and which are cleaved enzymatically to azelaic acid. Compounds produced from the compounds of Formula (I) by the enzymatic hydrolysis of the R1 and R2 groups are useful as anti-bacterial agents in mammals in vivo and have been contemplated to be used in the treatment of skin disease.
