4-Toluenesulfonyl chloride → 3-methyl-1-[(1-phenyl-1H-tetrazol-5-yl)thio]octan-3-ol

Beteiligte Stoffe

Reaktionsschritte

To a solution of the compound 38 (8.05 g) in toluene (98 mL) were added tetrabutylammonium bromide (1.62 g) and 2N sodium hydroxide (98 mL) at 0° C. and was added dropwise a suspension of tosyl chloride (10.5 g) in toluene (40 mL). The solution temperature was risen to room temperature and the solution was stirred for 1 Hour. A solution of 1-phenyl-1H-tetrazole-5-thiol (10.74 g) in toluene was added thereto and the solution was stirred at 60° C. for 3.5 Hours. The reaction solution was extracted with tert-butoxymethyl. The organic layer was washed with brine, dried over anhydrous magnesium sulfate and concentrated. The obtained residue was purified by Yamazen Parallel Prep (Brand name; column: 3 L, inject column: 2 L, n-hexane:ethyl acetate=81:19) to give the title compound (14.15 g) having the following physical data.

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