The title compound 5,17-diformyl-11,23-di（tert-butyl）-25,26,27,28-tetrapropoxycalix[4]arene has been synthesized by selective formylation of 5,11,17,23-tetra（tert-butyl）25,26,27,28-tetrahydroxycalix[4]arene in thr...The title compound 5,17-diformyl-11,23-di（tert-butyl）-25,26,27,28-tetrapropoxycalix[4]arene has been synthesized by selective formylation of 5,11,17,23-tetra（tert-butyl）25,26,27,28-tetrahydroxycalix[4]arene in three steps and characterized by1H NMR and X-ray single-crystal diffraction.The crystal belongs to the monoclinic system,space group C2/c with a = 25.760（3）,b = 10.9952（10）,c = 18.630（2）,β = 119.985（4）°,V = 4570.4（9）3,Z = 4,Dc = 1.106 g/cm3,Mr = 761.01,F（000） = 1648,μ = 0.071 mm-1,MoKa radiation（λ = 0.71073）,R = 0.0710 and wR = 0.2411 for 3234 observed reflections with I 2σ（I）.X-ray analysis reveals that the title compound adopts a pinched cone conformation which leads to an open cavity.Intermolecular C–H O weak interactions link the molecules along the bc plane,which are effective in the stabilization of the crystal structure.展开更多
基金Supported by the National Natural Science Foundation of China(No.21002009)Major Program for the Natural Science Research of Jiangsu Colleges and Universities(12KJA150002)+3 种基金Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology(BM2012110)the Scientific and Technological Project of Changzhou(CJ20115019)Priority Academic Program Development of Jiangsu Higher Education Institutionsthe Qing-Lan Project of Jiangsu Province
文摘The title compound 5,17-diformyl-11,23-di（tert-butyl）-25,26,27,28-tetrapropoxycalix[4]arene has been synthesized by selective formylation of 5,11,17,23-tetra（tert-butyl）25,26,27,28-tetrahydroxycalix[4]arene in three steps and characterized by1H NMR and X-ray single-crystal diffraction.The crystal belongs to the monoclinic system,space group C2/c with a = 25.760（3）,b = 10.9952（10）,c = 18.630（2）,β = 119.985（4）°,V = 4570.4（9）3,Z = 4,Dc = 1.106 g/cm3,Mr = 761.01,F（000） = 1648,μ = 0.071 mm-1,MoKa radiation（λ = 0.71073）,R = 0.0710 and wR = 0.2411 for 3234 observed reflections with I 2σ（I）.X-ray analysis reveals that the title compound adopts a pinched cone conformation which leads to an open cavity.Intermolecular C–H O weak interactions link the molecules along the bc plane,which are effective in the stabilization of the crystal structure.
