Synthetic Route of 41406-00-2, Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 41406-00-2, name is 3-Isopropoxyaniline, This compound has unique chemical properties. The synthetic route is as follows.
EXAMPLE 86; N-[(2-Cyclohexyl-4-hydroxy-1-{3-[(1-methylethyl)oxy]phenyl}-6-oxo-1,6-dihydro-5-pyrimidinyl)carbonyl]glycine; 86a) 2-Cyclohexyl-6-hydroxy-3-{3-[(1-methylethyl)oxy]phenyl}-4(3H)-pyrimidinone; 1M Dimethylaluminium chloride in hexane (2.75 mL, 2.75 mmol) was added to a stirred solution of 3-isopropoxyaniline (0.378 g, 2.50 mmol) and cyclohexanecarbonitrile (0.328 g, 3.00 mmol) in toluene (2 mL) and the mixture stirred for 15 min at room temperature under nitrogen, then microwaved at 150 C. for 30 min. After cooling, the solvent was removed under reduced pressure and diethyl malonate (1.52 mL, 10.0 mmol) added, followed by 2-methoxyethanol (5 mL) and methanolic sodium methoxide (2.30 mL, 10.0 mmol) and the mixture refluxed under nitrogen for 18 h, then cooled and poured into water (70 mL). The mixture was washed with ether, then acidified to pH 1 with 6M aqueous hydrochloric acid and extracted again with ethyl acetate. The extracts were washed with water, brine, dried (MgSO4) and evaporated under reduced pressure. The residue was chromatographed (silica gel, 1-9% methanol/dichloromethane) and the product triturated with ether. The solid was collected, washed with ether and dried to give the title compound (0.117 g, 14%) as a white solid. 1H NMR (400 MHz, DMSO-d6) delta ppm 0.78-0.94 (m, 2 H) 1.04-1.17 (m, 1 H) 1.24 (d, J=6.06 Hz, 3 H) 1.28 (d, J=6.06 Hz, 3 H) 1.41-1.59 (m, 3 H) 1.59-1.84 (m, 4 H) 2.16 (tt, J=11.53, 3.16 Hz, 1 H) 4.66 (sept, J=5.98 Hz, 1 H) 5.30 (s, 1 H) 6.78-6.86 (m, 1 H) 6.91-6.96 (m, 1 H) 6.98-7.05 (m, 1 H) 7.40 (t, J=8.08 Hz, 1 H) 11.31 (br. s., 1 H).
The chemical industry reduces the impact on the environment during synthesis 3-Isopropoxyaniline. I believe this compound will play a more active role in future production and life.
Reference:
Patent; Shaw, Antony N.; Duffy, Kevin J.; Tedesco, Rosanna; Wiggall, Kenneth; US2008/171756; (2008); A1;,
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