Trithioorthoester Exchange and Metathesis: New Tools for Dynamic Covalent Chemistry
作者:Michael Bothe、A. Gastón Orrillo、Ricardo L. E. Furlan、Max von Delius
DOI:10.1055/s-0039-1690992
日期:2019.10
acid-catalyzed exchange reaction of trithioorthoesters with thiols. We found that trithioorthoester exchange occurs readily in various solvents in the presence of stoichiometric amounts of strong Bronsted acids or catalytic amounts of certain Lewis acids. The scope of the exchange reaction was explored with various substrates, and conditions were identified that permit clean metathesis reactions between two
为了扩展动态共价和系统化学的工具箱,我们研究了三硫代原酸酯与硫醇的酸催化交换反应。我们发现在化学计量量的强布朗斯台德酸或催化量的某些路易斯酸存在下,三硫代原酸酯交换在各种溶剂中很容易发生。用各种底物探索了交换反应的范围,并确定了允许两种不同三硫代原酸酯之间发生清洁复分解反应的条件。S,S,S-原酸酯交换相对于 O,O,O-原酸酯交换的一个明显优势是交换反应可以在动力学上胜过水解,从而使该过程对残留水分不那么敏感。