A novel unsymmetrical dihydropyridine, possessing carboxymethyl and carbomethoxy groups at C(3) and C(5), respectively, has been produced using a modified Hantzsch synthesis, under solvent free conditions, in a domestic microwave oven. The product obtained was characterized by spectroscopic techniques and finally confirmed by X-ray diffraction studies. The title compound C17H18N2O5 crystallizes in the monoclinic system in the space group P21/c with cell parameters a = 12.860(2) Å, b = 7.4950(6) Å, c = 16.734(3) Å, β = 94.436(3)°, Z = 4 and V = 1608.1(4) Å3. The 1,4-dihydropyridine ring in the structure is in a flattened boat conformation. The molecule possesses a chiral center at C4. The 3-nitrophenyl ring is nearly orthogonal to the 1,4-dihydropyridine ring. The carbonyl groups at C3 and C5 are oriented in −antiperiplanar and +synperiplanar conformations, respectively. The structure exhibits both inter and intramolecular hydrogen bonds of the type N–H···O and C–H···O. A novel unsymmetrical dihydropyridine, possessing carboxymethyl and carbomethoxy groups at C(3) and C(5) respectively, has been produced using a modified Hantzsch synthesis, under solvent free conditions, in a domestic microwave oven. The product obtained was characterized by spectroscipic techniques and finally confirmed by X-ray diffraction studies. The title compound C17H18N2O5 crystallizes in the monoclinic system in the space group P21/c with cell parameters a = 12.860(2) Å, b = 7.4950(6) Å, c = 16.734(3) Å, β = 94.436(3)°, Z = 4 and V = 1608.1(4) Å3. The 1,4-dihydropyridine ring in the structure is in a flattened boat conformation. The molecule possesses a chiral center at C(4). The 3-nitrophenyl ring is nearly orthogonal to the 1,4-dihydropyridine ring. The carbonyl groups at C(3) and C(5) are oriented in −antiperiplanar and +synperiplanar conformations respectively. The structure exhibits both inter and intramolecular hydrogen bonds of the type N–H···O and C–H···O.
在家用微波炉中,在无溶剂条件下,利用改进的汉茨合成法生产出了一种新型不对称
二氢吡啶,其 C(3)和 C(5)分别具有羧甲基和羰基。所得到的产物通过光谱技术进行了表征,并最终通过 X 射线衍射研究得到了证实。标题化合物
C17H18N2O5 在空间群 P21/c 的单斜体系中结晶,晶胞参数 a = 12。860(2) Å, b = 7.4950(6) Å, c = 16.734(3) Å, β = 94.436(3)°, Z = 4 和 V = 1608.1(4) Å3.结构中的 1,4-
二氢吡啶环呈扁平船形构象。分子的 C4 处有一个手性中心。3
硝基苯环与 1,4-
二氢吡啶环几乎正交。位于 C3 和 C5 的羰基分别呈-反共面构象和+共面构象。该结构表现出 N-H-O 和 C-H-O 类型的分子间和分子内氢键。在家用微波炉的无溶剂条件下,利用改进的汉茨合成法生产出了一种新型的不对称
二氢吡啶,其 C(3)和 C(5)分别具有羧甲基和羰基。所得到的产物通过光谱技术进行了表征,并最终通过 X 射线衍射研究得到了证实。标题化合物 在空间群 P21/c 的单斜体系中结晶,晶胞参数 a = 12.860(2) Å, b = 7.4950(6) Å, c = 16.734(3) Å, β = 94.436(3)°, Z = 4 and V = 1608.1(4) Å3.结构中的 1,4-
二氢吡啶环呈扁平船形构象。分子的 C(4)处有一个手性中心。3
硝基苯环与 1,4-
二氢吡啶环几乎正交。位于 C(3) 和 C(5) 的羰基分别呈-反共面和+共面构象。该结构显示出 N-H-O 和 C-H-O 类型的分子间和分子内氢键。