3-(4-chlorophenyl)propanoyl chloride

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

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

Procedure: Tetrahydro-1-(5-t-butyl-1,3,4-thiadiazol-2-yl)- 3-methyl-6-hydroxy-2(1H)-pyrimidinone (0.05 mole), triethylamine (0.06 mole) and benzene (50 ml) are charged into a glass reaction vessel equipped with a mechanical stirrer, thermometer and reflux condenser. β-(4-Chlorophenyl)propionyl chloride (0.05 mole) is then added dropwise with stirring. After the addition is completed, the reaction mixture is heated at reflux with continued stirring for a period of about 30 minutes. After this time the reaction mixture is filtered and the filtrate is stripped of solvent under reduced pressure to yield the desired product tetrahydro-1-(5-t-butyl- 1,3,4-thiadiazol-2-yl)-3-methyl-6-[β-(4-chlorophenyl)propionyloxy] -2 (1H)-pyrimidinone as the residue. equipped with a mechanical stirrer thermometer and reflux condenser After the addition the reaction mixture is heated at reflux with continued stirring for a period of about 30 minutes After this time the reaction mixture is filtered

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

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

Procedure: To a solution of 26 mmol sodium hydroxide in 7 ml water 8.7 mmol of glycine were added. The mixture was cooled in an ice-bath and a solution of 8.7 mmol 3-(4-chloro-phenyl)-propionyl chloride (CA [52085-96-8]) in 10 ml dioxane was slowly added over a period of 20 minutes. After stirring overnight at room temperature, the mixture was extracted with diethyl ether. The aqueous phase was acidified by addition of diluted hydrochloric acid and filtered. Trituration of the solid in diethyl ether yielded the title compound as a colorless solid. Yield=42%. The mixture was cooled in an ice-bath the mixture was extracted with diethyl ether The aqueous phase was acidified by addition of diluted hydrochloric acid filtered

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

Procedure: To a solution of 26 mmol sodium hydroxide in 7 ml water 8.7 mmol of glycine were added. The mixture was cooled in an ice-bath and a solution of 8.7 mmol 3-(4-chloro-phenyl)-propionyl chloride (CA [52085-96-8]) in 10 ml dioxane was slowly added over a period of 20 minutes. After stirring overnight at room temperature, the mixture was extracted with diethyl ether. The aqueous phase was acidified by addition of diluted hydrochloric acid and filtered. Trituration of the solid in diethyl ether yielded the title compound as a colorless solid. Yield=42%. The mixture was cooled in an ice-bath the mixture was extracted with diethyl ether The aqueous phase was acidified by addition of diluted hydrochloric acid filtered

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

Procedure: To a solution of 26 mmol sodium hydroxide in 7 ml water 8.7 mmol of glycine were added. The mixture was cooled in an ice-bath and a solution of 8.7 mmol 3-(4-chloro-phenyl)-propionyl chloride (CA [52085-96-8]) in 10 ml dioxane was slowly added over a period of 20 minutes. After stirring overnight at room temperature, the mixture was extracted with diethyl ether. The aqueous phase was acidified by addition of diluted hydrochloric acid and filtered. Trituration of the solid in diethyl ether yielded the title compound as a colorless solid. Yield=42%. The mixture was cooled in an ice-bath the mixture was extracted with diethyl ether The aqueous phase was acidified by addition of diluted hydrochloric acid filtered

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: At 0° C., a solution of 3.6 g of trimethyl phosphite in 10 ml of diethyl ether is added dropwise to a solution of 5.1 g of 3-(4-chlorophenyl)propionic acid chloride in 25 ml of diethyl ether. The mixture is first stirred for 2.5 hours at 0° C., then another 2 hours at room temperature. After concentration of the solution, the residue is distilled with the use of a bulb tube at 200°-205° C. and a pressure of 0.02 mm, yielding 5.2 g (74%) of 3-(4-chlorophenyl)-1-oxopropane-1-phosphonic acid dimethyl ester. another 2 hours at room temperature After concentration of the solution, the residue is distilled with the use of a bulb tube at 200°-205° C.

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

Procedure: Thionyl chloride (16.31 g, 137.09 mmol) was added to 3-(4-chlorophenyl)propionic acid (3.0 g, 16.25 mmol) at room temperature. The reaction mixture was stirred for 20 hours, then concentrated to afford 3.3 g of 3-(4-chlorophenyl)propionyl chloride. concentrated