Cavity-promoted Diels–Alder Reactions of Unsubstituted Naphthalene: Fine Reactivity Tuning by Cavity Shrinkage
作者:Yu Fang、Takashi Murase、Makoto Fujita
DOI:10.1246/cl.150351
日期:2015.8.5
By finely tuning the cavity volume of a coordination cage, the Diels–Alder reactivity of aromatic compounds was enhanced. Even unsubstituted naphthalene could be made to undergo the Diels–Alder reaction with N-tert-butylmaleimide, with perfectly controlled syn-selectivity. M6L4 cages with standard and contracted cavities had opposite effects on the reaction: the former favored larger Diels–Alder substrates, whereas the latter favored smaller ones.