摘要：

Ten new molecules containing 2-anthraquinonyl, steroidal groups, and various linking groups have been synthesized. Several structural properties of the new molecules have been found to influence gelation abilities: (1) gelation is facilitated by β stereochemistry at C-3 of the steroidal moiety; (2) minor modifications of the C-17 alkyl chain of the steroidal moiety do not destroy gelling ability; and (3) the length and functionality of the linker group can affect gelation ability significantly, although the number of examples studied is not sufficient to discern a clear correlation. Gelation temperatures (Tg) were measured for several gels by the "inverse-flow" and "ball-drop" methods. Since gels composed of cholesteryl 4-(2-anthraquinonyloxy)butanoate (1) and d-, l-, or dl-2-octanol have virtually the same Tgs over a range of gelator concentrations, specific liquidgelator interactions do not appear to be a sensitive variable, at least when the liquid molecules being compared are similar in shape. Liqui...

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