Rg. Kostyanovsky et al., Spontaneous resolution of new conglomerates in the series of 4-arenesulfonyliminocyclohex-2-en-1-ones, MENDELEEV C, (1), 2000, pp. 16-18
Racemic mixtures 1a-f, 2a-e crystallise as conglomerates at room temperatur
e and lead to spontaneous resolution; tosylimines 1e and 2c give homochiral
crystals (space group P1), whereas similar benzenesulfonyloximes 3a,b give
heterochiral packings (space groups P2(1)/n and P2(1)/c, respectively).