N, N′ — Ditritylurea and Analogs as Hosts in Crystalline Clathrate Complexes: Synthesis and Selectivity Studies
作者:Kwok-Keung Daniel Ng、Harold Hart
DOI:10.1016/0040-4020(95)00432-8
日期:1995.7
Of 38 hosts, most of them new, designed on the ‘wheel-and-axle’ model, 24 formed clathratecomplexes with small molecules; 95 new host/guest combinations are described (Table 6). Selectivitystudies (Table 7) show, in some instances, substantial discrimination between guests with similar structures.
Synthesis of a Library of Propargylated and PEGylated α-Hydroxy Acids Toward “Clickable” Polylactides via Hydrolysis of Cyanohydrin Derivatives
作者:Quanxuan Zhang、Hong Ren、Gregory L. Baker
DOI:10.1021/jo5016135
日期:2014.10.17
of the corresponding easily accessible cyanohydrin derivatives in methanolic sulfuricacid. Facile desymmetrization, monofunctionalization, and efficient chain-elongation coupling of OEGs further enable the incorporation of OEGs to α-hydroxy acids in a simple and efficient manner. At the end, synthesis of allyloxy lactic acid indicates that an alkene group is also compatible with the developed method