The title compound, 5(R)-(1R,2S,5R)-menthoxy-4(R)-N-cyclohexylaminobutyrolactone 1, has been synthesized via the asymmetric Micheal addition reaction of 5(R)-menthoxy- 2(5H)-furanone 4 with cyclohexylamine 5...The title compound, 5(R)-(1R,2S,5R)-menthoxy-4(R)-N-cyclohexylaminobutyrolactone 1, has been synthesized via the asymmetric Micheal addition reaction of 5(R)-menthoxy- 2(5H)-furanone 4 with cyclohexylamine 5, and structurally determined by single-crystal X-ray diffraction. Crystal data: C20H36NO3, Mr = 337.49, monoclinic system, space group P21, a = 9.8677(7), b = 9.7737(7), c=11.0204(8) A, β= 103.7820(10)°, V= 1032.25(13) A^3, Z = 2, Dc= 1.086 g/cm^3, 2(MoKα) = 0.071073 nm,μ= 0.071 mm^-1 and F(000) = 372. The structure was refined to R = 0.0328 and wR = 0.0864 for 4203 observed reflections (I 〉 2σ(I)). The crystallographic results of molecule 1 show that the functionalized N-cyclohexylamino group is linked in the 4-position of butyrolactone to form the novel chiral optically active compound.展开更多
基金Supported by the National Natural Science Foundation of China(11871452,12071052the Natural Science Foundation of Henan(202300410338)the Nanhu Scholar Program for Young Scholars of XYNU。
基金Supported by the National Natural Science Foundation of China (No. 29672004)
文摘The title compound, 5(R)-(1R,2S,5R)-menthoxy-4(R)-N-cyclohexylaminobutyrolactone 1, has been synthesized via the asymmetric Micheal addition reaction of 5(R)-menthoxy- 2(5H)-furanone 4 with cyclohexylamine 5, and structurally determined by single-crystal X-ray diffraction. Crystal data: C20H36NO3, Mr = 337.49, monoclinic system, space group P21, a = 9.8677(7), b = 9.7737(7), c=11.0204(8) A, β= 103.7820(10)°, V= 1032.25(13) A^3, Z = 2, Dc= 1.086 g/cm^3, 2(MoKα) = 0.071073 nm,μ= 0.071 mm^-1 and F(000) = 372. The structure was refined to R = 0.0328 and wR = 0.0864 for 4203 observed reflections (I 〉 2σ(I)). The crystallographic results of molecule 1 show that the functionalized N-cyclohexylamino group is linked in the 4-position of butyrolactone to form the novel chiral optically active compound.