13838-32-9Relevant articles and documents
Triazine natural gas drag reducer as well as synthesis method and application thereof
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Paragraph 0020; 0031-0032; 0071-0074, (2021/05/05)
The invention discloses a triazine natural gas drag reducer and a synthesis method thereof. The molecular structural formula of the drag reducer is shown in the description. The synthesis method of the drag reducer comprises the following steps: dissolving cyanuric chloride in a solvent, dropwise adding an alcohol and an inorganic alkali at -15-0 DEG C, carrying out a reaction at -15-0 DEG C for 2-6 h, adding morpholine and the inorganic alkali after the reaction ends, carrying out a reaction at 50-100 DEG C for 6-12 h, washing the obtained reaction product with water after the reaction ends,and drying the washed reaction product to obtain the product. The drag reducer has a multi-polar end and a non-polar end, and has a good adsorption performance and excellent drag reducing and transportation increasing effects. The synthesis method has the advantages of simplicity, mild conditions, short time, low device requirements, and easiness in realization of large-scale industrial production.
Synthesis and functionalization of heteroatom-bridged bicyclocalixaromatics, large molecular triangular prisms with electron-rich and -deficient aromatic interiors
Naseer, Muhammad Moazzam,Wang, De-Xian,Zhao, Liang,Huang, Zhi-Tang,Wang, Mei-Xiang
supporting information; experimental part, p. 1804 - 1813 (2011/06/10)
The synthesis and functionalization of oxygen and nitrogen atom bridged bicyclocalixaromatics of triangular prism structures are reported. By means of a fragment coupling approach, molecular triangular prisms of electron-rich and electron-deficient aromatic interiors were prepared using 1,3,5-tri(p- hydroxyphenyl)benzene and 2,4,6-tri(p-aminophenyl) triazine as base units and chlorotriazines as pillars. Aromatic nucleophilic substitution reaction of chlorotriazine moieties with functionalized amines led to triangular prisms with functionalizations on the peripheral edge positions, while functionalized triangular prisms on the vertex nitrogen positions were obtained using 2,4,6-tri[(p-allylamino)phenyl]-triazine derivative as a starting material. Symmetrical and distorted molecular triangular prisms in the solid state were revealed by X-ray crystallography. As evidenced by NMR spectroscopic data, however, all cage molecules synthesizedmost probably adopted highly symmetric triangular prism structures in solution phase. The functionalized shape-persistent triangular prism structures might find applications in molecular recognition and in the construction of higher and more sophisticated molecular architectures in supramolecular chemistry.