Two potential chiral auxiliaries, N (E ) enoyl(-) bornane 10,2 sultams, were synthesized from (-) bornane 10,2 sultams. The molecular crystal structures of the title compounds were determined by diffraction analysis. The crystal of C 16 O 3SNH 25 belongs to a rhombic system, the space group is P 2 12 12 1 with cell parameters: a =0 734 6(7) nm, b =1 142 7(3) nm, c =2 009 7(3) nm, β =90 00°, V =1 686 9 nm 3, Z=4, D c=1 250 g/cm 3, μ =1 926 cm -1 and F (000)=672. The crystal of C 15 O 3SNH 23 belongs to a rhombic system, the space group is P 2 12 12 1 with cell parameters: a =0 738 2(2) nm, b =0 921 6(1) nm, c =2 280 9(8) nm, β =90 00°, V =1 551 7 nm 3, Z =4, D c=1 273 g/cm 3, μ =2 504 cm -1 and F (000)=640. The structural characteristics with respect to the potential utility for the stereoselective Michael addition reaction of the N enoyl group are discussed. Two potential chiral auxiliaries, N (E) enoyl (-) bornane 10,2 sultams, were synthesized from () bornane 10,2 sultams. The molecular crystal structures of the title compounds were determined by diffraction analysis. The crystal of C 16 0 3SNH 25 belongs to a rhombic system, the space group is P 2 12 12 1 with cell parameters: a = 0 734 6 (7) nm, b = 1 142 7 (3) nm, c = 2 009 7 nm, β = 90 00 °, V = 1 686 9 nm 3, Z = 4, D c = 1 250 g / cm 3, μ = 1 926 cm -1 and F (000) = 672. O 3SNH 23 belongs to a rhombic system, the space group is P 2 12 12 1 with cell parameters: a = 0 738 2 (2) nm, b = 0 921 6 (1) nm, c = nm, β = 90 00 °, V = 1 551 7 nm 3, Z = 4, D c = 1 273 g / cm 3, μ = 2 504 cm -1 and F (000) = 640. The structural characteristics with respect to the potential utility for the stereoselective Michael addition reaction of the N enoyl group are dis cussed