molybdenum oxide compound, [N(C4H9)4]2[Mo6O19] (1), catalyzed selective oxidation of anilines with hydrogen peroxide as green oxidant. The oxidation of anilines can be realized in a fully selectively fashion to afford various symmetric/asymmetric azobenzene and azoxybenzene compounds, respectively, by changing additive and solvent, avoiding the use of stoichiometric metal oxidants. Preliminary mechanistic
在医药和工业应用中起重要作用的芳族偶氮化合物在合成中仍然面临巨大挑战。在此,我们报道了一种氧化钼化合物[N(C 4 H 9)4 ] 2 [Mo 6 O 19 ](1),用过氧化氢作为绿色氧化剂催化苯胺的选择性氧化。苯胺的氧化可以完全选择性地实现,通过改变添加剂和溶剂避免使用化学计量的金属氧化剂,从而分别提供各种对称/不对称的偶氮苯和and氧基苯化合物。初步的机理研究表明,高活性的反应性和难以捉摸的钼亚胺配合物是中间的。
DABROWSKI R.; DZIADUSZEK J.; CZUPRYNSKI K., BIUL. WAT J. DABROWSKIEGO, 1981, 30, NO 1, 53-57
作者:DABROWSKI R.、 DZIADUSZEK J.、 CZUPRYNSKI K.
DOI:——
日期:——
Construction of one Ru2W12-cluster and six lacunary Keggin tungstoarsenate leading to the larger Ru-containing polyoxometalate photocatalyst
作者:Huafeng Li、Mengnan Yang、Zelong Yuan、Yahao Sun、Pengtao Ma、Jingyang Niu、Jingping Wang
DOI:10.1016/j.cclet.2021.12.081
日期:2022.10
Construction of two RuⅢ cations and six lacunary Keggin fragments resulted in a novel Ru2W12-cluster (RuO6)2(WO3)12(H2O)12} bridged polyoxometalate, NaH11[(RuO6)(AsW9O33)3(W6O3)(H2O)6}]2 53H2O (NaH11·1·53H2O), which represent the largest cluster in all the Ru-containing polyoxometalates. The most interesting characteristic is that the symmetry-related Ru2W12-cluster-based hexamers contain two windmill-shaped
两个Ru Ⅲ阳离子和六个空位Keggin片段的构建产生了一种新型Ru 2 W 12 -簇(RuO 6 ) 2 (WO 3 ) 12 (H 2 O) 12 }桥接多金属氧酸盐,NaH 11 [(RuO 6 )( AsW 9 O 33 ) 3 (W 6 O 3 )(H 2 O) 6 }] 2 53H 2 O (NaH 11 ·1· 53H 2O),代表所有含钌多金属氧酸盐中最大的簇。最有趣的特征是对称相关的基于Ru 2 W 12簇的六聚体包含两个风车形[(RuO 6 )(AsW 9 O 33 ) 3 (W 6 O 3 )(H 2 O) 6 } ] 三聚体或 Ru 2 W 12簇被六段 B-β-AsW 9 O 33紧紧包裹. 另一个显着特征是有一个有趣的立方结构:它由 Ru(1, 2) 和 W(1, 28, 50, 51, 52, 53) 原子组成。以NaH 11 ·1· 53H 2 O为