Sodium hydrosulfide → 1,1-Dimethoxy-7-mercapto-3,7-dimethyloctane

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Reaction Steps

A solution of 10 g. of 1,1-dimethoxy-7-chloro-3,7-dimethyloctane, 1.1 equivalents of sodium hydrosulfide and 100 ml. of methanol is refluxed for 24 hours. After cooling, solvent is evaporated under reduced pressure and the concentrate taken up in ether. The ether solution is washed with water, dried over magnesium sulfate and then evaporated to give 1,1-dimethoxy-7-mercapto-3,7-dimethyloctane.

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