Sodium toluene-4-sulphinate dihydrate → 1-Methyl-4-[(3-methyl-2-butenyl)sulfonyl]benzene

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Reaction Steps

In dimethylformamide (20 ml) was dissolved 1-bromo-3-methyl-butene(1.49 g, 10 m moles) and sodium p-toluenesulfinate dihydrate (2.5 g, 1.16 equiv.), the solution was stirred at room temperature for 3 hours. The product was isolated in the usual manner and recrystallized from n-hexane to give 1-(p-toluenesulfonyl)-3-methyl-2-butene (2.16 g, 96.4%), melting point: 71°-72° C.

Provenance & Evidence