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. 19819-98-8, name is 2-(o-Tolyl)ethanol. This compound has unique chemical properties. The synthetic route is as follows. SDS of cas: 19819-98-8
To a stirred solution of tert-butyl 4-([(5-chloro-2-hydroxybenzoyl)amino]methyl}benzoate (step 1 of the synthetic procedure of example 1-4, 0.21 g, 0.58 mmol), 2-(2-methylphenyl)ethanol (0.16 g, 1.2 mmol) and triphenylphosphine (0.30 g, 1.2 mmol) in tetrahydrofuran (5 mL) was added di-tert-butyl azodicarboxylate (0.27 g, 1.2 mmol) at room temperature. After being stirred overnight, the reaction was quenched by the addition of sodium bicarbonate aqueous solution. The aqueous layer was extracted with ethyl acetate and the combined organic layers were washed with brine, dried (magnesium sulfate), and evaporated. The remaining residue was purified by flush column chromatography on silica gel eluding with hexane/ethyl acetate (5/1) to afford 0.21 g (76%) of the title compounds as a colorless oil: 1H-NMR (CDCl3) 8.20 (1H, d, J=2.8 Hz), 7.99 (1H, t, J=5.9 Hz), 7.91 (2H, d, J=8.2 Hz), 7.38 (1H, dd, J=8.7, 2.8 Hz), 7.25 (2H, d, J=8.2 Hz), 7.16-7.03 (4H, m), 6.93 (1H, d, J=8.7 Hz), 4.52 (2H, d, J=5.9 Hz), 4.34 (2H, t, J=6.8 Hz), 3.04 (2H, t, J=6.8 Hz), 2.25 (3H, s), 1.59 (9H, s); MS (ESI) m/z 480 (M+H)+.
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Reference:
Patent; Pfizer Inc; US2005/250818; (2005); A1;,
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