Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 63746-12-3, name is Dimethyl 4-aminoisophthalate, A new synthetic method of this compound is introduced below., Quality Control of Dimethyl 4-aminoisophthalate
To a mixture of (4-adamantan-1-yl-phenoxy)-acetic acid (229 mg, 0.8 mmol) and 4-aminoisophthalic acid dimethyl ester (301 mg, 1.4 mmol) were dissolved in DMF (5 mL), and EDCHCl (140 mg, 0.75 mmol), HOAt (163 mg, 1.2 mmol) and DIPEA (0.21 ml, 1.2 mmol) was added. The mixture was stirred overnight, and then partitioned between ethyl acetate and brine. The organic phase was dried (MgSO4 anh), and concentrated. The residue was purified by silica gel column chromatography (CH2Cl2:MeOH=50:1) to give 4-[2-(4-Adamantan-1-yl-phenoxy)acetyl-amino]-isophthalic acid dimethyl ester as a white solid (281 mg, 76.3% yield). 1H-NMR (CDCl3, 300 Hz) 12.00 (1H, s, NH), 9.40 (1H, d, J=1.8 Hz, aromatic), 8.12 (1H, d, J=7.8 Hz, aromatic), 7.78 (1H, dd, J=8.1 & 1.8 Hz, aromatic), 7.33 (2H, m, aromatic), 7.03 (2H, m, aromatic), 4.65 (2H, s, OCH2CO), 3.97 (3H, s, OCH3), 3.95 (3H, s, OCH3), 2.09 (3H, m, adamantyl), 1.89-1.90 (6H, m, adamantyl), 1.72-1.82 (6H, m, adamantyl).
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Patent; KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY; US2009/306078; (2009); A1;,
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