The Influence of Substitution on Thiol-Induced Oxanorbornadiene Fragmentation
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 facileMichaeladdition 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