作者:Lucrezia De Pascalis、Mei-Kwan Yau、Dennis Svatunek、Zhuoting Tan、Srinivas Tekkam、K. N. Houk、M. G. Finn
DOI:10.1021/acs.orglett.1c01164
日期:2021.5.7
Oxanorbornadienes (ONDs) undergo facile Michael addition with thiols and then fragment by a retro-Diels–Alder (rDA) reaction, a unique two-step sequence among electrophilic cleavable linkages. The rDA reaction rate was explored as a function of the furan structure, with substituents at the 2- and 5-positions found to be the most influential and the fragmentation rate to be inversely correlated with
氧杂降冰片二烯 (OND) 与硫醇进行简单的迈克尔加成,然后通过逆狄尔斯-阿尔德 (rDA) 反应进行片段化,这是亲电可切割键之间的独特两步序列。研究了 rDA 反应速率与呋喃结构的函数关系,发现 2 位和 5 位的取代基影响最大,碎裂率与吸电子能力呈负相关。密度泛函理论计算提供了与实验测量的 OND rDA 率的极好相关性。