Cleavage of Hemiaminals
A highly efficient ruthenium-catalyzed stereospecific N-demethylative rearrangement of isoxazolidines gives synthetically useful N-H-1,3-oxazinanes. 1,3-Oxazinanes are useful building blocks, which can be converted to N-H-1,3-aminoalcohols in a subsequent step.
C.-Z. Yao, Z.-F. Xiao, X.-S. Ning, J. Liu, X.-W. Zhang, Y.-B. Kang, Org. Lett., 2014, 16, 5824-5826.