The addition of Grignard reagents to cyclic sulfamidate imines
has been developed as a facile method for the synthesis of N-substituted
quaternary sulfamidates. By way of ring opening with an appropriate
nucleophile, versatile synthons for 1,2-amino alcohols, 1,2-diamines,
and β-amino acids are produced.
cyclic imine - Grignard addition - sulfamidate
imine - N-substituted quaternary stereocenter