Asymmetric Alkylation of Nitroalkanes We thank the National Science Foundation and the National Institutes of Health (NIH), General Medical Sciences, for their generous support of our programs. Rhône-Poulenc graciously provided a postdoctoral fellowship for J.-P. S. Mass spectra were provided by the Mass Spectrometry Facility of the University of California, San Francisco, supported by the NIH Division of Research Resources.