A series of novel 3-(1H-benzo[d]imidazol-2-yl)-3,4-dihydro-2H-benzo[e][1,3] oxazine analogues synthesized through a two-step synthetic protocol. The structure of the compounds were established by interpretation 1H NMR, 13C NMR and Mass spectral data recorded after purification. All the title compounds 4a–k were screened for their in vitro anti-cancer activity against two breast cancer cell lines MCF
Charge-Assisted Complexation of Anions of Different Dimensionality by Benzimidazole-Based Receptors Bearing -OH Functionality
作者:Abhijit Gogoi、Gopal Das
DOI:10.1021/cg300496t
日期:2012.8.1
where the shape of the counteranion drives the solid structure from a one-dimensional polymeric chain to a three-dimensional structure. Structural analyses show that the anionbinding in all eight complexes is attributable entirely to NH+···anion, NH···anion, OH···anion, and multiple CH···anion hydrogen bonding interactions. In the solid structure the planar nitrate anion forms a cyclic structure with receptor
具有-OH官能度的两个基于苯并咪唑的受体(L 1和L 2)与不同的有机酸和无机酸形成结晶盐。[L 1 H + ] [Cl – ](1),[L 1 H + ] [NO 3 – ](2),[L 1 H + ] [OAc – ](3),[L 1 H + ] [ DNB – ]·DMF(4),[L 1 H + ] [H 2 PO 4 – ](5),[L 2 H + ] [OAc – ]·AcOH(6),[L 2 H + ] [DNB – ](7)和[L 2 H + ] [HSO 4 – ]·H 2 O(8),其中抗衡阴离子的形状将固体结构从一维聚合物链驱动为三维结构。结构分析表明,所有八个配合物中的阴离子结合完全归因于NH + ···阴离子,NH ···阴离子,OH ···阴离子和多个CH ···阴离子氢键相互作用。在固体结构中,平面硝酸根阴离子与受体L 1形成环状结构,而具有相同受体的乙酸根阴离