A Colorimetric Proton Sponge

作者：Swor Charles D; Zakharov Lev N; Tyler David R^*

来源：Journal of Organic Chemistry, 2010, 75(20): 6977-6979.

DOI：10.1021/jo10138h

1-8-Bis(dimethylammo)naphtlialene ("Proton Sponge") and bromomaleic anhyride lean quickly at room temperature). generating 3-(4.5-bis(dimethylammo)napthalen-1-yl)furan-2.5-dione (4-maleicanhydndopioton sponge or "MAPS") MAPS is a deep purple solid that exhibit positive solvato-chrormsin in solution. It is a weaker base than Proton Sponge When protona led in solution. MAPS loses us cohn but the color change can be reversed by deprotonation with a stronger base MAPS thus acts as a colorimetric version of a proton sponge

• 出版日期2010-10-15