Li-xue Ma, Yuan Shi, Jin-Lan Li
May 15, 2023
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Journal
Molecular Crystals and Liquid Crystals
Abstract
Abstract Tert-butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)indoline-1-carboxylate has three groups: indoline, boronate and tert-butylcarbonyl, which is an important pharmaceutical intermediate. The target compound is obtained from 5-bromoindole as raw material. The compound was confirmed by 1H NMR, 13C NMR, MS and FT-IR. DFT is used to computationally optimize the structure of compounds. The crystallographic analysis of its structure was carried out by X-ray single crystal diffraction. The results show that the DFT-optimized structure matches the crystal structure determined by X-ray single crystal diffraction. The molecular electrostatic potential and frontier molecular orbital of the compound were studied by DFT, revealing physicochemical properties of the compound.