Potassium Carbonate → HCID 13765577, compound

Participants

Reaction Steps

Powdered potassium carbonate (3.0 g) was added to a solution of dimethyl-5-(4-trimethylsilylethynylphenoxy)-isophthalate (5.0 g) in a mixture of methanol (80 ml) and dioxane (20 ml). A crystalline precipitate gradually formed upon stirring at ambient temperature for two hours. The reaction mixture was diluted with water (100 ml) and filtered to yield dimethyl-5-(4-ethynylphenoxy)isophthalate as a tan crystalline solid (3.0 g), m.p. 124'-125° C. Calculated for C18H14O5 : C, 69.68%; H, 4.55%. Found: C, 69.76%; H, 4.84%.

Provenance & Evidence