聚乙二醇丁醚

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 2-Butoxyethanol (butyl cellosolve) 121 g (1.02 m), furoic acid 95 g (0.85 m) and 1 g dibutyltin dioctoate were heated with a xylene azeotrope to acid number 3. Xylene removed by distillation to a pot temperature of 200° and reaction product distilled. 2-Butoxyethylfuroate collected in fraction 2, 111°-104°. Yield 162 g, 86%. Xylene removed by distillation to a pot temperature of 200° and reaction product distilled 2-Butoxyethylfuroate collected in fraction 2, 111°-104°

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: TiO2 grind [16.4 g Ti Pure® titanium dioxide supplied by DuPont Company, Wilmington, Del., 0.7 g dispersing, 0.1 g ammonia (28% strength), 0.2 g surfactant, 0.1 g defoamer, and 1.6 g water] mixed with 54 g of the oxidative polymer and 8 grams of Butyl Cellosolve cosolvent, 1.5 grams of propylene glycol was added to 12.6 grams of water to form a paint. To the paint, 0.6 ml of P-6140 horseradish peroxidase P-6140 (EC 1.11.1.7) supplied by Sigma Chemical, PO Box 14508, St. Louis, Mo. 63178 (1 ml contains 21 mg enzyme which has an activity of 250 units/mg. One unit will form 1 mg of purpurogallin from pyrogallol in 20 sec. at pH 6 and 20° C.) was added (0.15 ml is equivalent to 3.15 mg enzyme having 250 units activity per mg). The pot mix was then conventionally applied to a plastic sheet as a clear layer having a dry film thickness of 50 microns. The layer was air dried for 4 days to form a film. Thereafter, specimens of the film were removed and measured for the degree of crosslinking achieved by the oxidizing enzyme. The film was found to have a swell ratio of 5.7 indicating significant crosslinking of the oxidative polymer by the oxidizing enzyme. TiO2 grind to form a paint

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The reaction product of 0.81 g. of zinc oxide, 9.91 g. of dimethyl-n-octadecyl [3(trimethoxysilyl)propyl] ammonium chloride, 10.0 g. of 28% aqueous ammonia in 100 g. of 2-n-butoxyethanol, after overnight agitation, was diluted with 15.0 g. of additional 2-n-butoxyethanol and gave a clear, homogeneous solution of a zinc ammine siliconate with an Si/Zn ratio of 2.0/1.0. Upon air drying, the solution gave a non-tacky coating which was firm, soft, water-repellent and water-insoluble, but swollen by toluene. was diluted with 15.0 g

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The reaction product of 0.81 g. of zinc oxide, 9.91 g. of dimethyl-n-octadecyl [3(trimethoxysilyl)propyl] ammonium chloride, 10.0 g. of 28% aqueous ammonia in 100 g. of 2-n-butoxyethanol, after overnight agitation, was diluted with 15.0 g. of additional 2-n-butoxyethanol and gave a clear, homogeneous solution of a zinc ammine siliconate with an Si/Zn ratio of 2.0/1.0. Upon air drying, the solution gave a non-tacky coating which was firm, soft, water-repellent and water-insoluble, but swollen by toluene. was diluted with 15.0 g

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:135.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 60 parts of urea are mixed with 177 parts of butylglycol and 3 parts of a cation exchanger which is commercially available under the registered name Lewatit CA 9259 and, having been treated in accordance with Example (1 a), contains nickel, in a stirred apparatus. The mixture is heated to 135° C., whilst stirring. It is then heated for 10 hours at 140° C. After cooling, the mixture is filtered and the excess butylglycol is distilled from the filtrate under reduced pressure. 158 parts of n-butoxyethyl carbamate (corresponding to 98% of theory, based on urea) are obtained. On distillation of the end product in a high vacuum, a residue of only 0.9% by weight is left. The pure butoxyethyl carbamate has a boiling point 118°-120° C. at 0.2 mm Hg. It is then heated for 10 hours at 140° C After cooling the mixture is filtered the excess butylglycol is distilled from the filtrate under reduced pressure

反应条件: temp:135.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 60 parts of urea are mixed with 177 parts of butylglycol and 3 parts of a cation exchanger which is commercially available under the registered name Lewatit CA 9259 and, having been treated in accordance with Example (1 a), contains nickel, in a stirred apparatus. The mixture is heated to 135° C., whilst stirring. It is then heated for 10 hours at 140° C. After cooling, the mixture is filtered and the excess butylglycol is distilled from the filtrate under reduced pressure. 158 parts of n-butoxyethyl carbamate (corresponding to 98% of theory, based on urea) are obtained. On distillation of the end product in a high vacuum, a residue of only 0.9% by weight is left. The pure butoxyethyl carbamate has a boiling point 118°-120° C. at 0.2 mm Hg. It is then heated for 10 hours at 140° C After cooling the mixture is filtered the excess butylglycol is distilled from the filtrate under reduced pressure

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of 2-butoxyethanol (1.06 g, 9 mmol) and sodium hydride (310 mg, 9 mmol) in dry tetrahydrofuran was added a solution of 3-(4-chloro-1,2,5-thiadiazol-3-yl)pyridine (590 mg, 3 mmol) in dry tetrahydrofuran. The reaction mixture was stirred at room temperature for 2 h. Water was added and the mixture was extracted with ether. The ether phase was dried and evaporated to give the title compound. the mixture was extracted with ether The ether phase was dried evaporated

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of 2-butoxyethanol (1.06 g, 9 mmol) and sodium hydride (310 mg, 9 mmol) in dry tetrahydrofuran was added a solution of 3-(4-chloro-1,2,5-thiadiazol-3-yl)pyridine (590 mg, 3 mmol) in dry tetrahydrofuran. The reaction mixture was stirred at room temperature for 2 h. Water was added and the mixture was extracted with ether. The ether phase was dried and evaporated to give the title compound. the mixture was extracted with ether The ether phase was dried evaporated