pent-2-enoyl chloride

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

Procedure: To 20 ml of tetrahydrofuran were added 2.4 g of 4-amino-6,7-dimethoxy-2-(1-piperazinyl)quinazoline hydrochloride and 2.6 of triethylamine, after which the mixture was stirred for 20 minutes. There was then added 0.78 g of 2-pentenoyl chloride, after which the mixture was stirred at room temperature for 15 hours. The resulting crystals were collected by filtration, washed with water and recrystallized from ethanol, to give 1.23 g of the desired Compound No. 5 in the form of pale brown needles melting at 246°-247° C. after which the mixture was stirred at room temperature for 15 hours The resulting crystals were collected by filtration washed with water recrystallized from ethanol

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

Procedure: To 20 ml of tetrahydrofuran were added 2.4 g of 4-amino-6,7-dimethoxy-2-(1-piperazinyl)quinazoline hydrochloride and 2.6 of triethylamine, after which the mixture was stirred for 20 minutes. There was then added 0.78 g of 2-pentenoyl chloride, after which the mixture was stirred at room temperature for 15 hours. The resulting crystals were collected by filtration, washed with water and recrystallized from ethanol, to give 1.23 g of the desired Compound No. 5 in the form of pale brown needles melting at 246°-247° C. after which the mixture was stirred at room temperature for 15 hours The resulting crystals were collected by filtration washed with water recrystallized from ethanol

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

Procedure: combining 3-pentenoylchloride with water, butadiene, and hydrochloric acid to form a mixture where the ratio of butadiene to pentenoylchloride is 1:1 to 6:1 and the molar ratio of water to 3-pentenoylchloride is 1:1 to 15:1, and reacting this mixture at a temperature in the range of about 0 degrees C. to 100 degrees C., preferably 30 to 50 degrees C., and at a pressure of about 50 to 600 psig to form a mixture comprising an organic phase containing 3-pentenoic acid, chlorovaleric acid, 3-chloro-1-butene and 1-chloro-2-butene, and an aqueous phase,

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

Procedure: combining the separated mixture containing 3-pentenoylchloride and chlorobutenes with water, butadiene, and hydrochloric acid to form a mixture where the ratio of butadiene to pentenoylchloride is 1:1 to 6:1 and the molar ratio of water to 3-pentenoylchloride is 1:1 to 15:1, and reacting this mixture at a temperature in the range of about 0 degrees C. to 100 degrees C., and at a pressure of about 50 to 600 psig, and forming a two phase mixture comprising an organic phase containing 3-pentenoic acid, chlorovaleric acid, and additional chlorobutene selected from the group consisting of 3-chloro-1-butene and 1-chloro-2-butene, and an aqueous phase,

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

Procedure: combining the separated mixture containing 3-pentenoylchloride and chlorobutenes with water, butadiene, and hydrochloric acid to form a mixture where the ratio of butadiene to pentenoylchloride is 1:1 to 6:1 and the molar ratio of water to 3-pentenoylchloride is 1:1 to 15:1, and reacting this mixture at a temperature in the range of about 0 degrees C. to 100 degrees C., and at a pressure of about 50 to 600 psig to form a two phase mixture comprising an organic phase containing 3-pentenoic acid, chlorovaleric acid, and additional chlorobutene selected from the group consisting of 3-chloro-1-butene and 1-chloro-2-butene, and an aqueous phase,

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

Procedure: combining 3-pentenoylchloride with water, butadiene, and hydrochloric acid to form a mixture where the ratio of butadiene to pentenoylchloride is 1:1 to 6:1 and the molar ratio of water to 3-pentenoylchloride is 1:1 to 15:1, and reacting this mixture at a temperature in the range of about 0 degrees C. to 100 degrees C., preferably 30 to 50 degrees C., and at a pressure of about 50 to 600 psig to form a two phase mixture comprising an organic phase containing 3-pentenoic acid, chlorovaleric acid, 3-chloro-1-butene and 1-chloro-2-butene, and an aqueous phase,

Conditions: temp:30.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: At 30° C., a mixture of 7.35 g of 2-pentenoyl chloride (62 mmol) and 1.7 g of zinc chloride (12 mmol, 0.2 eq.) in 85 ml ethylene chloride was treated dropwise within 20 min. with a solution of 19.4 g of (−)-alpha-pinene (142 mmol, 2 eq.) in 20 ml ethylene dichloride. The reaction mixture was then stirred at 30° C. for 30 min., then at 50° C. for 2 h, and finally at 80° C. for 1 h. After cooling, the reaction mixture was washed with aq. sat. NaCl soln. and aq. sat. NaHCO3 soln. The aq. phases were extracted with Et2O, dried (Na2SO4), and concentrated. FC (SiO2, hexane/Et2O 20:1) of the crude (26 g) gave 1.74 g (13%) of compound 2. The boiling point of the end product is 95° C. at 0.06 torr (0.08 mbar). at 50° C. for 2 h finally at 80° C. for 1 h After cooling the reaction mixture was washed with aq. sat. NaCl soln The aq. phases were extracted with Et2O dried (Na2SO4) concentrated

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

Procedure: First, 9 g of triiodophenol was dissolved in 150 mL dichloromethane under argon. Then, 3.15 mL of pentenoyl chloride was added while stirring. Triethylamine was then added slowly and stirred for 4 hr. The solution was washed with 100 mL of water and evaporated to dryness, leaving 2,4,6-triiodophenyl penta-4-enoate. stirred for 4 hr The solution was washed with 100 mL of water evaporated to dryness