Cesium carbonate → (1R,2R,4aS,8aS)-1-{[(3-methoxy-5-methylphenyl)sulfanyl]methyl}-2,5,5,8a-tetramethyl-decahydronaphthalen-2-ol

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Reaction Steps

A mixture of 3-methoxy-5-methylbenzenethiol (11) (3.14 g, 20.4 mmol), ((1S,2R,4aS,8aS)-2-hydroxy-2,5,5,8a-tetramethyldecahydronaphthalen-1-yl)methyl methanesulfonate (12) (6.48 g, 20.4 mmol), and Cs2CO3 (19.90 g, 61.08 mmol) in CH3CN (300 mL) was stirred at room temperature for 1 h, then refluxed for 24 h. After cooling, the mixture was concentrated. Purification by chromatography on silica gel (Hexanes/EtOAc, 4:1) gave (1R,2R,4aS,8aS)-1-{[(3-methoxy-5-methylphenyl)sulfanyl]methyl}-2,5,5,8a-tetramethyl-decahydronaphthalen-2-ol (13) (5.70 g, purity ˜75%) as a yellow sticky mass.

Provenance & Evidence