Renewable Rigid Diamines: Efficient, Stereospecific Synthesis of High Purity Isohexide Diamines
作者:Shanmugam Thiyagarajan、Linda Gootjes、Willem Vogelzang、Jacco van Haveren、Martin Lutz、Daan S. van Es
DOI:10.1002/cssc.201100398
日期:2011.12.16
We report an efficient three‐step strategy for synthesizing rigid, chiral isohexide diamines derived from 1,4:3,6‐dianhydrohexitols. These biobased chiral building blocks are presently the subject of several investigations (in our and several other groups) because of their application in high‐performance biobased polymers, such as polyamides and polyurethanes. Among the three possible stereo‐isomers
我们报告了一种有效的三步策略,用于合成衍生自1,4:3,6-二脱水己糖醇的刚性,手性异己糖二胺。这些生物基手性构建基块由于在高性能生物基聚合物(如聚酰胺和聚氨酯)中的应用,目前正受到数个研究的课题(在我们和其他几个小组中)。在三种可能的立体异构体中,双脱氧二氨基异山梨醇和双脱氧二氨基异山梨醇可以分别从异甘露糖苷和异山梨醇合成,并通过绝对立体控制合成。此外,通过使用这种方法,从异碘化物开始以高收率获得了双环氨基异甘露糖苷(一种三环加合物)。