Efficient One-Pot Syntheses of Betti Bases Catalyzed by 1-Methyl-3-(2-(sulfooxy)ethyl)-1H-imidazol-3-ium Chloride. -Two slightly different approaches to Betti bases are given. The application of the reusable pyridine-based ionic liquid emerges as crucial for satisfying yields. -(WANG, C.; WAN, Y.; WANG, H.-Y.; ZHAO, L.-L.; SHI, J.-J.; ZHANG, X.-X.; WU*, H.; J. Heterocycl. Chem. 50 (2013) 3, 496-500, http://dx.

An efficient synthesis of 2‐amino‐4a,5,6,7‐tetrahydronaphthalene‐1,3,3(4H)‐tricarbonitriles via the tandem four‐component condensation of one equivalent of aromatic aldehyde, cyclohexanone, and two equivalents of malononitrile in ionic liquids was undertaken. Up to four new bonds and one new ring were formed in one‐pot with water as the only by‐product in this multi‐component procedure.