By the addition reaction of the schiff base of ehylenediamine with diethyl phosphite, his-a-aminophosphonate (II) wereobtained, Which were cyclized with triphosgene or oxalyl chloride giving the title compounds (ill) ...By the addition reaction of the schiff base of ehylenediamine with diethyl phosphite, his-a-aminophosphonate (II) wereobtained, Which were cyclized with triphosgene or oxalyl chloride giving the title compounds (ill) or (IV) in high yields.展开更多
The title compound, C23H42N2O8Si2, Mr=530.77, crystallizes in the monoclinic system, space group P21, with a=10.577(5), b=10.528(2), c=13.374(5)?, (=100.63(3)(, V=1461(2)?3, Z=2, Dx=1.207g/cm3, ((MoK()=0.71073?, (=1.5...The title compound, C23H42N2O8Si2, Mr=530.77, crystallizes in the monoclinic system, space group P21, with a=10.577(5), b=10.528(2), c=13.374(5)?, (=100.63(3)(, V=1461(2)?3, Z=2, Dx=1.207g/cm3, ((MoK()=0.71073?, (=1.590mm-1, T=299(1K, F(000)=572, R=0.070 and Rw=0.075 for 1232 observed reflections with I (3((I). The analysis result indicates that the configuration of the title compound at C(2() is S. In the crystal state the molecule has anti- conformation about glycosidic bond with the torsion angle -126.96(. The sugar ring is puckered with C3(-endo-C4(-exo, and the conformation of the C(4()-C(5() bond is +sc.展开更多
The title compound, C15H22N3O9P?H2O, Mr=455.36, crystallizes in orthorhombic, space group P212121, with a =9.193(2), b =14.681(3), c =15.201(3), V =2501(1)3, Z =4, Dx=1.474g/cm3, l(MoKa)=0.71073, m=0.1894mm-1, T=2991K...The title compound, C15H22N3O9P?H2O, Mr=455.36, crystallizes in orthorhombic, space group P212121, with a =9.193(2), b =14.681(3), c =15.201(3), V =2501(1)3, Z =4, Dx=1.474g/cm3, l(MoKa)=0.71073, m=0.1894mm-1, T=2991K, F(000)=960, R=0.061 and Rw=0.068 for 1899 observed reflections with I≥3s(I). The analysis results indicate that the title compound is of lyxo-configuration and the configuration at C4 is S. In the crystal state the molecule has anti conformation about glycosidic bond with the torsion angle 151.7? the sugar ring is puckered with C3-endo-C2-exo, and the conformation of the C4C5 bond is -sc.展开更多
文摘By the addition reaction of the schiff base of ehylenediamine with diethyl phosphite, his-a-aminophosphonate (II) wereobtained, Which were cyclized with triphosgene or oxalyl chloride giving the title compounds (ill) or (IV) in high yields.
基金the Foundation for University Key Teacher by the Ministry of Education
文摘The title compound, C23H42N2O8Si2, Mr=530.77, crystallizes in the monoclinic system, space group P21, with a=10.577(5), b=10.528(2), c=13.374(5)?, (=100.63(3)(, V=1461(2)?3, Z=2, Dx=1.207g/cm3, ((MoK()=0.71073?, (=1.590mm-1, T=299(1K, F(000)=572, R=0.070 and Rw=0.075 for 1232 observed reflections with I (3((I). The analysis result indicates that the configuration of the title compound at C(2() is S. In the crystal state the molecule has anti- conformation about glycosidic bond with the torsion angle -126.96(. The sugar ring is puckered with C3(-endo-C4(-exo, and the conformation of the C(4()-C(5() bond is +sc.
基金This project was supported by the Foundation for University Key Teachers by the Ministry of Education
文摘The title compound, C15H22N3O9P?H2O, Mr=455.36, crystallizes in orthorhombic, space group P212121, with a =9.193(2), b =14.681(3), c =15.201(3), V =2501(1)3, Z =4, Dx=1.474g/cm3, l(MoKa)=0.71073, m=0.1894mm-1, T=2991K, F(000)=960, R=0.061 and Rw=0.068 for 1899 observed reflections with I≥3s(I). The analysis results indicate that the title compound is of lyxo-configuration and the configuration at C4 is S. In the crystal state the molecule has anti conformation about glycosidic bond with the torsion angle 151.7? the sugar ring is puckered with C3-endo-C2-exo, and the conformation of the C4C5 bond is -sc.
