2-ethoxy-1,2-diphenylethanone

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To 100 parts of an aqueous solution of pH 4.0 containing 5% of a styrene-maleic anhydride copolymer and a small amount of sodium hydroxide was added a mixed solution consisting of 10 parts of dodecyl gallate, 30 parts of a polyoxypropylene glycol monoether, 0.3 part of benzoin ethyl ether and 59.7 parts of an epoxy acrylate type photocurable resin (brand name: RIPOXY, manufactured by Showa Highpolymer Co., Ltd.), and they were emulsified. 10 parts of melamine, 25 parts of a 37% aqueous formaldehyde solution and 65 parts of water were adjusted to pH 9 with sodium hydroxide and then heated to 60° C. In 15 minutes, the mixture became transparent and a melamine-formaldehyde precondensate was obtained. This precondensate was added to the emulsion prepared previously. The resulting mixture was continuously stirred at 60° C. The formation of microcapsules was confirmed in 30 minutes and the microcapsule fluid was cooled to room temperature.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 1.2 A 12% strength solution of a mixture of 2 parts of benzoin ethyl ether, 6 parts of the reaction product of 1 mole of toluylene diisocyanate and 2 moles of β-hydroxyethyl methacrylate and 92 parts of the polyvinyl alcohol/methacrylic anhydride reaction product, prepared as described in 1.1, in a mixture of equal parts of water and ethanol is prepared. The solution is applied to a steel sheet which has been coated with a polyurethane adhesive according to German Laid-Open Application DOS No. 1,597,515 (prepared from a commercial hydroxy-containing polyester, obtained from 2.5 moles of adipic acid, 0.5 mole of phthalic acid and 4 moles of 1,1,1-trimethylolpropane, by reaction with a triisocyanate prepared by reacting 3 moles of toluylene diisocyanate with 1 mole of 1,1,1-trimethylolpropane), the amount of solution applied to the sheet being such that, after curing for 7 minutes in a cabinet dryer at 150° C., a 10 μm thick intermediate layer (c) results. prepared is prepared

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 1.2 A 12% strength solution of a mixture of 2 parts of benzoin ethyl ether, 6 parts of the reaction product of 1 mole of toluylene diisocyanate and 2 moles of β-hydroxyethyl methacrylate and 92 parts of the polyvinyl alcohol/methacrylic anhydride reaction product, prepared as described in 1.1, in a mixture of equal parts of water and ethanol is prepared. The solution is applied to a steel sheet which has been coated with a polyurethane adhesive according to German Laid-Open Application DOS No. 1,597,515 (prepared from a commercial hydroxy-containing polyester, obtained from 2.5 moles of adipic acid, 0.5 mole of phthalic acid and 4 moles of 1,1,1-trimethylolpropane, by reaction with a triisocyanate prepared by reacting 3 moles of toluylene diisocyanate with 1 mole of 1,1,1-trimethylolpropane), the amount of solution applied to the sheet being such that, after curing for 7 minutes in a cabinet dryer at 150° C., a 10 μm thick intermediate layer (c) results. prepared is prepared

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 1-Oxo-2-ethoxy-2-(2-diethylphosphonoethyl)-1,2-diphenylethane (25 g, prepared from benzoin ethyl ether and diethyl vinyl phosphonate as described in Example 3 of U.S. Pat. No. 4,082,821) is dissolved in ethanol (200 ml). Sodium hydroxide (20 g) is added to the solution and the mixture is heated under reflux for 3 hours. The ethanol is removed by rotary evaporation, water is added, and the mixture is washed with diethyl ether (4×100 ml) to remove unreacted starting material. Concentrated hydrochloric acid is added to the aqueous mixture until the pH is zero. The resulting mixture is washed with ether, water is evaporated and the residue is recrystallised from a mixture of acetone and ether to give 12.5 g of product, a compound of formula XVIII where R1 is ethoxy, R3 and Ar1 are each phenyl, R7 is --CH2CH2 -- and R8 is --CH2CH3. the mixture is heated under reflux for 3 hours The ethanol is removed by rotary evaporation, water is added the mixture is washed with diethyl ether (4×100 ml) to remove unreacted Concentrated hydrochloric acid is added to the aqueous mixture until the pH is zero The resulting mixture is washed with ether, water is evaporated the residue is recrystallised from a mixture of acetone and ether

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 1-Oxo-2-ethoxy-2-(2-diethylphosphonoethyl)-1,2-diphenylethane (25 g, prepared from benzoin ethyl ether and diethyl vinyl phosphonate as described in Example 3 of U.S. Pat. No. 4,082,821) is dissolved in ethanol (200 ml). Sodium hydroxide (20 g) is added to the solution and the mixture is heated under reflux for 3 hours. The ethanol is removed by rotary evaporation, water is added, and the mixture is washed with diethyl ether (4×100 ml) to remove unreacted starting material. Concentrated hydrochloric acid is added to the aqueous mixture until the pH is zero. The resulting mixture is washed with ether, water is evaporated and the residue is recrystallised from a mixture of acetone and ether to give 12.5 g of product, a compound of formula XVIII where R1 is ethoxy, R3 and Ar1 are each phenyl, R7 is --CH2CH2 -- and R8 is --CH2CH3. the mixture is heated under reflux for 3 hours The ethanol is removed by rotary evaporation, water is added the mixture is washed with diethyl ether (4×100 ml) to remove unreacted Concentrated hydrochloric acid is added to the aqueous mixture until the pH is zero The resulting mixture is washed with ether, water is evaporated the residue is recrystallised from a mixture of acetone and ether

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 1-Oxo-2-ethoxy-2-(2-diethylphosphonoethyl)-1,2-diphenylethane (25 g, prepared from benzoin ethyl ether and diethyl vinyl phosphonate as described in Example 3 of U.S. Pat. No. 4,082,821) is dissolved in ethanol (200 ml). Sodium hydroxide (20 g) is added to the solution and the mixture is heated under reflux for 3 hours. The ethanol is removed by rotary evaporation, water is added, and the mixture is washed with diethyl ether (4×100 ml) to remove unreacted starting material. Concentrated hydrochloric acid is added to the aqueous mixture until the pH is zero. The resulting mixture is washed with ether, water is evaporated and the residue is recrystallised from a mixture of acetone and ether to give 12.5 g of product, a compound of formula XVIII where R1 is ethoxy, R3 and Ar1 are each phenyl, R7 is --CH2CH2 -- and R8 is --CH2CH3. the mixture is heated under reflux for 3 hours The ethanol is removed by rotary evaporation, water is added the mixture is washed with diethyl ether (4×100 ml) to remove unreacted Concentrated hydrochloric acid is added to the aqueous mixture until the pH is zero The resulting mixture is washed with ether, water is evaporated the residue is recrystallised from a mixture of acetone and ether

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The powdered KOH is added slowly to the acrylic acid and the saccharose and water in a reaction flask kept in an ice-water bath. The temperature is kept between 40° and 50° C. After neutralization, the pH-value of the resulting solution is adjusted to 7.8. Then 2-hydroxyethyl methacrylate and the acetophenone are added. The mixture is then poured into the polymerization trough and polymerization is effected by UV-radiation at a bath temperature of 50° C. and a reaction temperature of 60° C. The product is readily millable. is kept between 40° and 50° C The mixture is then poured into the polymerization trough and polymerization is effected by UV-radiation at a bath temperature of 50° C. a reaction temperature of 60° C

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 1-Oxo-2-ethoxy-2-(2-diethylphosphonoethyl)-1,2-diphenylethane (25 g, prepared from benzoin ethyl ether and diethyl vinyl phosphonate as described in Example 3 of U.S. Pat. No. 4,082,821) is dissolved in ethanol (200 ml). Sodium hydroxide (20 g) is added to the solution and the mixture is heated under reflux for 3 hours. The ethanol is removed by rotary evaporation, water is added, and the mixture is washed with diethyl ether (4×100 ml) to remove unreacted starting material. Concentrated hydrochloric acid is added to the aqueous mixture until the pH is zero. The resulting mixture is washed with ether, water is evaporated and the residue is recrystallised from a mixture of acetone and ether to give 12.5 g of product, a compound of formula XVIII where R1 is ethoxy, R3 and Ar1 are each phenyl, R7 is --CH2CH2 --and R8 is --CH2CH3. the mixture is heated under reflux for 3 hours The ethanol is removed by rotary evaporation, water is added the mixture is washed with diethyl ether (4×100 ml) to remove unreacted Concentrated hydrochloric acid is added to the aqueous mixture until the pH is zero The resulting mixture is washed with ether, water is evaporated the residue is recrystallised from a mixture of acetone and ether

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To 100 parts of an aqueous solution of pH 4.0 containing 5% of a styrene-maleic anhydride copolymer and a small amount of sodium hydroxide was added a mixed solution consisting of 10 parts of dodecyl gallate, 30 parts of a polyoxypropylene glycol monoether, 0.3 part of benzoin ethyl ether and 59.7 parts of an epoxy acrylate type photocurable resin (brand name: RIPOXY, manufactured by Showa Highpolymer Co., Ltd.), and they were emulsified. 10 parts of melamine, 25 parts of a 37% aqueous formaldehyde solution and 65 parts of water were adjusted to pH 9 with sodium hydroxide and then heated to 60° C. In 15 minutes, the mixture became transparent and a melamine-formaldehyde precondensate was obtained. This precondensate was added to the emulsion prepared previously. The resulting mixture was continuously stirred at 60° C. The formation of microcapsules was confirmed in 30 minutes and the microcapsule fluid was cooled to room temperature.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 1.2 A 12% strength solution of a mixture of 2 parts of benzoin ethyl ether, 6 parts of the reaction product of 1 mole of toluylene diisocyanate and 2 moles of β-hydroxyethyl methacrylate and 92 parts of the polyvinyl alcohol/methacrylic anhydride reaction product, prepared as described in 1.1, in a mixture of equal parts of water and ethanol is prepared. The solution is applied to a steel sheet which has been coated with a polyurethane adhesive according to German Laid-Open Application DOS No. 1,597,515 (prepared from a commercial hydroxy-containing polyester, obtained from 2.5 moles of adipic acid, 0.5 mole of phthalic acid and 4 moles of 1,1,1-trimethylolpropane, by reaction with a triisocyanate prepared by reacting 3 moles of toluylene diisocyanate with 1 mole of 1,1,1-trimethylolpropane), the amount of solution applied to the sheet being such that, after curing for 7 minutes in a cabinet dryer at 150° C., a 10 μm thick intermediate layer (c) results. prepared is prepared