Isophthalate Ester-Terminated Dendrimers: Versatile Nanoscopic Building Blocks with Readily Modifiable Surface Functionalities
作者:Jeffrey W. Leon、Manabu Kawa、Jean M. J. Fréchet
DOI:10.1021/ja961681u
日期:1996.1.1
and 64 terminal ester functionalities, respectively) have been subjected to a variety of surface modification reactions including hydrolysis, ester interchange, and amide−ester interchange, many of which proceed with complete conversion of the functional groups and in high isolated yield. The addition of alcohols such as benzyl alcohol or a first generation 3,5-di(benzyloxy)benzyl alcohol dendron to
介绍了含有通用间苯二甲酸二乙酯端基的高度官能化聚醚树枝状聚合物的制备和改性。收敛合成包括在焦点处构建含有苄基溴功能的二酯封端树突及其随后与 4,4'-双酚核的连接。可以单独使用重结晶作为主要纯化手段来制备高达第三代的树突,从而可以在数十至数百克的规模上进行合成。第三代和第四代双树枝状大分子(分别具有 32 和 64 个末端酯官能团)已经进行了多种表面改性反应,包括水解、酯交换和酰胺酯交换,其中许多进行了官能团的完全转化并以高分离产率进行。将诸如苯甲醇或第一代 3,5-二(苄氧基)苯甲醇树枝状化合物等醇类添加到...