@article{oai:nagoya.repo.nii.ac.jp:02001704, author = {Hor, Seanghai and Oyama, Kin-ichi and Koga, Nobuaki and Tsukamoto, Masaki}, journal = {Tetrahedron Letters}, month = {Jun}, note = {Several Brønsted acids were investigated as catalysts for 1,4-additions of 1,3,5-trimethoxybenzene to maleimides. Among the acids tested, trifluoromethanesulfonic acid in low polar solvents such as toluene and 1,2-dichloroethane was found to show high reactivity, enabling preparation of 3-(2,4,6-trimethoxyphenyl)succinimides. 1,4-Additions of 1,3,5-trimethoxybenzene to acrylates were also realized by a catalytic amount of trifluoromethanesulfonic acid in toluene.}, title = {Brønsted acid-catalyzed 1,4-addition of 1,3,5-trimethoxybenzene to maleimides and acrylates}, volume = {74}, year = {2021} }