反应详情

The following compounds may be mentioned as compounds represented by formula (IV). As ester-type compounds there may be mentioned sorbitan laurate [R6: lauryl, R7=R8=R9: hydrogen, k+l+m+n=0 (example: NEWCOL™ 20 by Nippon Nyukazai Co., Ltd.)], sorbitan stearate [R6: stearyl, R7=R8=R9: hydrogen, k+l+m+n=0 (example: IONET™ S-60C by Sanyo Chemical Industries, Ltd.)], sorbitan oleate [R6: oleyl, R7=R8=R9: hydrogen, k+l+m+n=0 (example: IONET™ S-80C by Sanyo Chemical Industries, Ltd.)], sorbitan palmitate [R6: palmityl, R7=R8=R9: hydrogen, k+l+m+n=0 (example: SORBON™ S-40 by Toho Chemical Industry Co., Ltd.)], sorbitan coconut oil fatty acid ester [R6: acyl group of coconut oil fatty acid (coconut oil being a fatty acid obtained from the flesh of coconut stone, with fatty acids as a mixture of saturated fatty acids such as lauric acid and myristic acid and unsaturated fatty acids such as oleic acid and linolic acid), R7=R8=R9: hydrogen, k+l+m+n=0 (example: IONET™ S-20 by Sanyo Chemical Industries, Ltd.), and sorbitan trioleate [R6═R7=R9: oleyl, R8: hydrogen, k+l+m+n=0 (example: IONET™ S-85 by Sanyo Chemical Industries, Ltd.), as well as mixtures of the foregoing.