Method for reducing carbonate decomposition in reaction mixtures

A method for reducing the percent decomposition of an aromatic carbonate in a first reaction mixture comprising said aromatic carbonate, a palladium source, a lead source, and at least one member selected from the group consisting of an aromatic hydroxy compound, an aryloxide salt, water, a salt, an organic solvent, a base source, and any mixtures thereof, the method comprising the step of adding at least one member selected from the group consisting of hydrobromic acid and phosphoric acid to said first reaction mixture, so as to produce a second reaction mixture in which the percent of said aromatic carbonate present in said second reaction mixture after a predetermined amount of time is greater than the percent of said aromatic carbonate that would be present in the first reaction mixture in the absence of adding the decomposition-reducing additive, after the same predetermined amount of time.

A method for reducing the percent decomposition of an aromatic carbonate in a first reaction mixture comprising said aromatic carbonate, a palladium source, a copper source, a titanium source, and at least one member selected from the group consisting of an aromatic hydroxy compound, an aryloxide salt, water, a salt, an organic solvent, a base source, and any mixtures thereof, the method comprising the step of adding at least one member selected from the group consisting of oxalic acid, adipic acid, nitrilotriacetic acid, ethylenediaminetetraacetic acid, citric acid, succinic acid, malonic, hydrobromic acid, phosphoric acid, and any mixtures thereof to said first reaction mixture, so as to produce a second reaction mixture in which the percent of said aromatic carbonate present in said second reaction mixture after a predetermined amount of time is greater than the percent of said aromatic carbonate that would be present in the first reaction mixture in the absence of adding the decomposition-reducing additive, after the same predetermined amount of time.

A method for reducing the percent decomposition of an aromatic carbonate in a first reaction mixture comprising said aromatic carbonate, a palladium source, a lead source, and at least one member selected from the group consisting of an aromatic hydroxy compound, an aryloxide salt, water, a salt, an organic solvent, a base source, and any mixtures thereof, the method comprising the step of adding at least one member selected from the group consisting of hydrobromic acid, phosphoric acid, oxalic acid, adipic acid, nitrilotriacetic acid, ethylenediaminetetraacetic acid, citric acid, succinic acid, malonic acid, hydrobromic acid, phosphoric acid, and any mixtures thereof to said first reaction mixture, so as to produce a second reaction mixture in which the percent of said aromatic carbonate present in said second reaction mixture after a predetermined amount of time is greater than the percent of said aromatic carbonate that would be present in the first reaction mixture in the absence of adding the decomposition-reducing additive, after the same predetermined amount of time.