p-Toluenesulfonic acid → HCID 67172923、化合物

関与物質

反応手順

In a round bottom flask, (0.9 g) 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid and (9.8 mg) p-toluene sulfonic acid and 2 ml toluene was taken. The reaction mixture was stirred at room temperature and subsequently 2 g (1 equiv) bis-(4-chlorophenyl)-dimethoxymethane [IIa4] diluted with 5 ml toluene was added through droping funnel. The reaction mixture was heated at reflux temperature and the water was removed azeotropically under Dean Stark. Continuous removal and addition of toluene was done up to 2 hrs. Then the reaction mixture was cooled at room temperature to obtain off white solid. It was filtered and washed with toluene and then water.

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