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. 626-18-6, name is 1,3-Benzenedimethanol. This compound has unique chemical properties. The synthetic route is as follows. 626-18-6
To a stirred solution of 1,3-phenylenedimethanol (1.0 g, 7.2 mmol) and imidazole (0.74 g, 11 mmol) in DMF (36 mL) at 0C was added TBDPS-Cl (2.0 mL, 7.6 mmol). After 30 min, the reaction mixture was allowed to warm to rt and stirred for 18h. The mixture was diluted with Et2O, washed with water (4X), then brine, dried over Na2SO4, filtered and concentrated. The crude product was purified by flash chromatography to give 9A (1.2 g, 44 %).1H NMR (500MHz, CDCl3) delta 7.72 (dd, J=8.0, 1.4 Hz, 4H), 7.45 (d, J=7.4 Hz, 2H), 7.43 – 7.37 (m, 4H), 7.34 (d, J=11.8 Hz, 3H), 7.29 (s, 2H), 4.81 (s, 2H), 4.71 (d, J=5.8 Hz, 2H), 1.59 (d, J=11.8 Hz, 1H), 1.13 (s, 9H).
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Reference:
Patent; BRISTOL-MYERS SQUIBB COMPANY; SMALLHEER, Joanne M.; KICK, Ellen K.; VALENTE, Meriah Neissel; HU, Carol Hui; HALPERN, Oz Scott; JUSUF, Sutjano; (133 pag.)WO2018/5336; (2018); A1;,
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