Water → [4-(3,4-Dichlorophenyl)-1,2,3,4-tetrahydro-naphthalen-2-yl]-methanol

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Reaction Steps

A solution of 10 (2.55 g, 7.3 mmol) in THF (40 ml) was added dropwise to a stirring mixture of LiAlH4 (0.304 g, 8.0 mmol) in THF (20 ml) at 0° C. The resulting suspension was stirred at room temperature for 3 hours, then, the mixture was cooled to 0° C., and water (0.15 ml) was added dropwise to destroy the excess hydride. The mixture was filtered, and the solvent was evaporated in vacuo to give colorless oil. The residue was purified by chromatography, CombiFlash silica gel column, MeOH/CH2Cl2, MeOH from 0% to 3%, to give 11 as a clear oil (mixture of cis and trans diastereomers, 1.80 g, 80%). 1H NMR (CDCl3) δ 1.31-1.54 (m, 1H), 1.92-1.98 (m, 2H), 2.10-2.26 (m, 1H), 2.54-2.71 (m, 1H), 2.92-3.03 (m, 1H), 3.53-3.75 (m, 2H), 4.07 (dd, J=12 Hz, 5.2 Hz) and 4.25 (t, J=3.6 Hz, total 1 H), 6.72-7.38 (m, 7H). 13C NMR (CDCl3) δ 32.0, 32.5, 33.4, 34.6, 37.5, 37.6, 43.3, 46.3, 67.5, 67.9, 126.3, 126.4, 126.6, 127.0, 128.4, 128.5, 129.5, 129.7, 130.2, 130.5, 130.7, 130.9, 132.4, 132.7, 136.7, 136.9, 138.8, 147.5, 147.9.

Provenance & Evidence