Cyclohexanedicarboxylic anhydride

Asymmetric esterification. me.vo-Cyclohexanedicarboxylic anhydride (1) undergoes a highly stereoselective esterification with the diphenylboric ester (2) of (R)-2-methoxy-l-phenylethanol in the presence of diphenylboryl triflate to provide,... 

Cyclohexanedicarboxylic anhydride Cyclohexane-1,2-dicarbo]qflic anhydride. See Hexahydrophthalic anhydride... 

Synonyms 1,2-Cyclohexanedicarboxylic anhydride Cyclohexane-1,2-dicarboxylic anhydride HHPA Empirical CsHioOs Formula C6Hio(CO)20... 

Figure 22.28 and Figure 22.29 show, respectively, the H and C-NMR spectra of the oligoesters prepared from epoxidized sunflower oil methyl esters (methyl biodiesel from sunflower oil) and di-l,2-cyclohexanedicarboxylic anhydride using triethylamine as initiator. These materials are soluble in common organic solvents such as acetone, ethanol, tetrahydrofurane, and chloroform, but insoluble in water. Oligoesters from epoxidized biodiesel can be used as intermediate materials for the synthesis of polyelectrolytes by saponification reactions with aqueous solution of sodium or potassium hydroxide at room temperature (Fig. 22.27). The products obtained after saponification present solubility in water. Amphiphilic materials, such as the polyelectrolytes prepared from epoxidized biodiesel, have hydrophobic and hydrophilic segments. They can spontaneously self-organize in a wide variety of structures in aqueous solution. Understanding the dynamics of the formation and transition between the various self-organized structures is important for technological applications.

Nicolau A, Martignago Mariath R, Agostini Martini E, dos Santos Martini D, Samios D.The polymerization products of epoxidized oleic acid and epoxidized methyl oleate with cis-l,2-cyclohexanedicarboxylic anhydride and triethylamine as the initiator chemical structures, thermal and electrical properties. Mater Sci Eng C 2010 30 951-962. 

We annotate that 1,2-cyclohexanedicarboxylic anhydride can be also addressed as hexahydrophthalic anhydride. The esters of cyclohexane polycarboxylic acids may be used alone or in admixture with other plasticizers when the esters of cyclohexane polycarboxylic acids may act as viscosity depressants. 

Cyclohexanedicarboxylic anhydride, 13 Cyclopentane, 198 Decabromodiphenyl oxide, 73, 75 N,N -Diacetyladipoyl dihydrazide, 169 Diallyl phthalate, 81... 

Cyclohexanedicarboxylic acid, diethyl ester, CIS-, 29 Cyclohexanone, 90 4-Cyclohexene-I, 2-dicarboxylic ACID, diethyl ester, CIS-, 29 4-Cyclohexene-1,2-dicarboxylic anhydride, CIS-, 93... 

Figure 12 Phase diagrams of (a) trans-1,2,-cyclohexanedicarboxylic acid and (b) trans-1,2,-cyclohexanedicarboxylic acid anhydride.

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