Wu, Shujuan; Zhang, Yu-Fei; Ding, Huimin; Li, Xia; Lang, Xianjun published the artcile< Hydrazone-linked 2D porphyrinic covalent organic framework photocatalysis for visible light-driven aerobic oxidation of amines to imines>, Category: bromides-buliding-blocks, the main research area is hydrazone linked porphyrinic covalent organic framework catayst preparation; imine preparation; amine aerobic oxidation photocatalyst; Aerobic oxidation; Covalent organic frameworks; Hydrazone linkage; Imines; Visible light.
A hydrazone-linked 2D (two-dimensional) porphyrinic COF, Por-DETH-COF, was assembled from 5,10,15,20-tetrakis(4-benzaldehyde)porphyrin (p-Por-CHO) and 2,5-diethoxyterephthalohydrazide (DETH) and its photocatalytic activity was duly appraised with the aerobic oxidation of amines. Thereby, the red light-driven selective oxidation of benzyl amines to imines RCH=NR1 [R = Ph, 4-FC6H4, 2-thienyl, etc.; R1 = t-Bu, Bn, 4-MeC6H4CH2, etc.]was obtained in very high conversions and selectivities with ambient air as the oxidant. Importantly, the photocatalytic system exhibited remarkable compatibility of functional groups and extensive scope of benzyl amines. Notably, the Por-DETH-COF photocatalyst displayed outstanding recyclability after five successive cycles. This work suggests that 2D COFs could contribute a unique juncture for selective organic transformations by photocatalysis.
Journal of Colloid and Interface Science published new progress about Covalent organic frameworks. 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Category: bromides-buliding-blocks.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary