New discoveries in chemical research and development in 2021. Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals. In an article, author is Wang Haiyan, once mentioned the application of 540-36-3, HPLC of Formula: https://www.ambeed.com/products/540-36-3.html, Name is 1,4-Difluorobenzene, molecular formula is C6H4F2, molecular weight is 114.0928, MDL number is MFCD00000344, category is benzoxazole. Now introduce a scientific discovery about this category.
A pharmaceutical intermediate, 3-pyridyl benzoxazole derivatives (DIHY), was designed and synthesized as the guest molecule. The self-assembly binding models of tetramethyl cucurbit[6]uril (TMeQ[6]), cucurbit[7]uril (Q[7]) and cucurbit[8]uril (Q[8]) with DIHY were investigated by H-1 NMR, MS, isothermal titration calorimetry and UV-Vis spectrum. The results showed that there are different modes of interaction between these three different cucurbit[n]uril and DIHY. For the TMeQ[6]-DIHY system, the guest molecule is located at the port of the TMeQ[6], while for the Q[7]-DIHY system, the 4,5-dihydro-2H-benzoxazole moiety of the guest molecule reside within the cavity of Q[7] host, whereas the pyridyl group of DIHY guest remains outside of the portal to form the 1 : 1 inclusion complexes of pseudorotaxane structure. Nevertheless, the 4,5-dihydro-2H-benzoxazole moiety of two guest molecule is included in the cavity of Q[8] host in a face to face stacking way, while the pyridine group of DIHY is located at the port of Q[8] to form a 1 : 2 supramolecular structure.
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Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem