Quantitative Active Transport in [2]Rotaxane Using a One-Shot Acylation Reaction toward the Linear Molecular Motor
作者:Yoshimasa Makita、Nobuhiro Kihara、Toshikazu Takata
DOI:10.1021/jo8013726
日期:2008.12.5
moved over the proximate neopentyl group to deconstruct the interlocked structure. The wheel component in the rotaxane, however, quantitatively moved against the proximate end-cap by the action of trifluoroacetic anhydride in the presence of excess triethylamine. This motion, which was driven by the simple one-shot acylation reaction, can be referred as the active transport. When the distant end-cap is
制备由冠醚轮和仲铵盐轴组成的轮烷,其上新戊基型端帽靠近铵部分放置。当轮烷用过量的三乙胺处理时,车轮组件在热力学上移动到最接近的新戊基上,以解构互锁的结构。然而,在过量的三乙胺存在下,三氟乙酸酐的作用使轮烷中的车轮组分在数量上靠着近端盖移动。由简单的单次酰化反应驱动的这种运动可以称为主动传输。当远端盖是新戊基型时,在进行酰基转移后,轴可以从远端盖上热脱螺纹。