Tables 1, 4, and 5 are incorrectly shaded, and the shading does not denote negative statistical significance. The correct versions of Tables 1, 4, and 5 can be viewed below, with lines typeset in boldface indicating negative statistical significance. The images for Figures 6 and 7 are incorrectly switched. The image that appears as Figure 6 should be Figure 7, and the image that appears as Figu...

An efficient chiral squaramide-catalysed enantioselective Michael addition of pyrazolin-5-ones to nitroalkenes has been developed. This reaction afforded the chiral pyrazol-3-ol derivatives in high to excellent yields (up to >99%) with high enantioselectivities (up to 94% ee) for most substrates under very low catalyst loading (0.25 mol%). This catalytic asymmetric reaction provides valuable an...