Crystal structures of (R (S))-N-[(1R,2S)-2-benz­yloxy-1-(2,6-di­methyl­phen­yl)prop­yl]-2-methyl­propane-2-sulfinamide and (R (S))-N-[(1S,2R)-2-benz­yloxy-1-(2,4,6-tri­methyl­phen­yl)prop­yl]-2-methyl­propane-2-sulfinamide: two related protected 1,2-amino alcohols

The title compounds, C(22)H(31)NO(2)S, (1), and C(23)H(33)NO(2)S, (2), are related protected 1,2-amino alcohols. They differ in the substituents on the benzene ring, viz. 2,6-di­methyl­phenyl in (1) and 2,4,6-tri­methyl­phenyl in (2). The plane of the phenyl ring is inclined to that of the benzene ring by 28.52 (7)° in (1) and by 44.65 (19)° in (2). In the crystal of (1), N—H⋯O=S and C—H⋯O=S hydrogen bonds link mol­ecules, forming chains along [100], while in (2), similar hydrogen bonds link mol­ecules into chains along [010]. The absolute structures of both compounds were determined by resonance scattering.