1,2-二乙酰氧基丙烷

反应条件: temp:62.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A suspension is prepared from 800 parts of 1,2-diacetoxypropane, 960 parts of methanol and 176 parts of cation exchanger (®Lewatit SPC 108) in a stirred reactor, provided with a distillation unit, by stirring at 300 rpm, and the mixture is heated at 62° C. (The exchange resin is a sulfonated styrene/divinylbenzene copolymer resin; it has a macro-porous structure and a particle size of from 0.3 to 15 mm). 910 parts of the azeotropic mixture of methanol and methyl acetate, of boiling point 54° C., are distilled off in the course of 4 hours. The ion exchanger is then filtered off. Distillation gives 470 parts of a methyl acetate/methanol mixture and 376 parts of 1,2-propanediol. provided with a distillation unit of boiling point 54° C., are distilled off in the course of 4 hours The ion exchanger is then filtered off Distillation

反应条件: temp:150.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 2 g of niobium-V-chloride and 2 g of copper-II-chloride, after solution in 500 ml of glacial acetic acid and 50 ml of acetic acid anhydride, are combined with oxygen and propylene as in the earlier Examples and heated to 150° C. Working up of the reaction solution gave 26.3 g of propylene glycol diacetate.

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

实验步骤: 0.5 g of rhenium-V-chloride, 1 g copper-II-chloride and 1 g iron-III-chloride are dissolved in 500 ml of glacial acetic acid and 50 ml of acetic acid anhydride and then treated as in the earlier Examples. On working up, 20.2 g of propylene glycol diacetate are obtained.

反应条件: temp:150.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 2 g of ReCl5, 1 g of gallium trichloride, and 1 g of lithium chloride were dissolved in 720 ml of glacial acetic acid and 80 ml of acetic acid anhydride. After saturation with propylene, 20 atmospheres of oxygen were introduced under pressure and the mixture heated to 150° C. Distillation of the reaction solution gave 8.9 g of propylene glycol diacetate and 1 g of the monoacetate. Distillation of the reaction solution

反应条件: temp:150.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of 2 g of molybdenum-V-chloride in 450 ml of glacial acetic acid and 50 ml of acetic acid anhydride is saturated with propylene. Then, 20 atmospheres of oxygen are introduced under pressure and the mixture is heated to 150° C. Working up the reaction product by distillation gave 5.6 g of propylene glycol diacetate. Working up the reaction product by distillation

反应条件: temp:140.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 1 g of tantalum-V-chloride was dissolved in 400 ml of glacial acetic acid and 50 ml of acetic acid anhydride. After saturation with propylene and the further introduction under pressure of about 10 atmospheres of propylene, 20 atmospheres of oxygen were additionally added and the mixture was heated to about 140° C. After cooling, the batch was distilled. 20 g of propylene glycol diacetate were formed. After cooling the batch was distilled

反应条件: temp:140.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A 1-liter flask is charged with 3000 mol. wt. polyether triol (200 g, PO/EO copolymer having about 15 wt. % internal oxyethylene content; a flex-slab polyol), acetic anhydride (500 g), and zinc chloride (35 g). The mixture is heated to 140° C. for 7 h. Propylene glycol diacetate is isolated by distillation in 80% yield. A 1-liter flask is charged with 3000 mol

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

实验步骤: 2 g phosphorus trichloride and 2 g phosphorus pentachloride were dissolved with 2 g cupric chloride in 500 ml glacial acetic acid and 50 ml acetic anhydride and then further treated a described in Example 4. 5.2 g propylene glycol diacetate were obtained. further treated

反应条件: temp:160.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 2 g silicon tetrachloride were dissolved together with 2 g cuprous chloride and 2 g cupric chloride in 500 ml glacial acetic acid and 50 ml acetic anhydride. This solution was saturated with propylene and with compressed air at 40 atmospheres, and then heated to 160°C. Distillation resulted in the preparation of 4.6 g propylene glycol diacetate. Distillation

反应条件: temp:150.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Propylene and oxygen were introduced, in the manner described in Example 1, into a solution of 500 ml glacial acetic acid and 50 ml acetic anhydride containing 2 g aluminum acetate and 2 g cupric chloride. The contents were then heated to approximately 150°C. After cooling and release of pressure, the contents were subjected to distillation. 30.6 g propylene glycol diacetate were obtained. After cooling release of pressure, the contents were subjected to distillation

反应条件: temp:290.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 15.1 g of the catalyst prepared in EXAMPLE 1 was packed in a stainless steel reactor (2.5 cm×12 cm) provided with a thermocouple imbedded in the catalyst bed. The catalyst was heated at 290° C. A gaseous mixture consisting of, by volume, 72.4% propylene, 25.1% glacial acetic acid and 2.5% oxygen was passed through the heated catalyst at a pressure of 110 psig and a contact time of three seconds. The reactor effluent was passed through three traps connected in series; one cooled with ice water and two traps held at dry-ice temperature. The liquid condensates were combined and analyzed for esters and free acetic acid (by alkaline titration and gas chromatography). The vent gases were analyzed by gas chromatography for propylene, oxygen and carbon oxides. The analyses showed that allyl acetate was produced along with small amounts of 1,2-diacetoxypropane, γ-valerolactone and isopropyl acetate. (2.5 cm×12 cm) provided with a thermocouple a contact time of three seconds

反应条件: temp:62.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A suspension is prepared from 800 parts of 1,2-diacetoxypropane, 960 parts of methanol and 176 parts of cation exchanger (®Lewatit SPC 108) in a stirred reactor, provided with a distillation unit, by stirring at 300 rpm, and the mixture is heated at 62° C. (The exchange resin is a sulfonated styrene/divinylbenzene copolymer resin; it has a macro-porous structure and a particle size of from 0.3 to 15 mm). 910 parts of the azeotropic mixture of methanol and methyl acetate, of boiling point 54° C., are distilled off in the course of 4 hours. The ion exchanger is then filtered off. Distillation gives 470 parts of a methyl acetate/methanol mixture and 376 parts of 1,2-propanediol. provided with a distillation unit of boiling point 54° C., are distilled off in the course of 4 hours The ion exchanger is then filtered off Distillation