N-prop-2-ynylprop-2-yn-1-amine

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

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

Procedure: To a cooled (0° C.) solution of dipropargylamine (46.7 g, 502 mmol) in EtOAc (200 mL) and 10% aqueous K2CO3 (700 mL, 507 mmol) was slowly added a solution of N-(benzyloxycarbonyloxy)succinimide (125 g, 502 mmol) in EtOAc (500 mL) over 20 mins. The solution was stirred at 0° C. for 2 h then at RT 16 h. The phases were separated and the organic phase was washed with 10% aqueous K2CO3 (700 mL, 507 mmol) and then with saturated brine (500 mL) and was diluted to 1000 mL with EtOAc to give a 0.5M solution. at RT 16 h The phases were separated

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

Procedure: To a solution of 0.20 g of 5-(2,6-dichloro-4-(3,3-dichloro-2-propenyloxy)phenoxy)valeric acid and 0.05 g of dipropargylamine dissolved in 10 ml of chloroform was added 0.11 g of WSC hydrochloride, while stirring at room temperature. After stirring at room temperature for 24 hours, the reaction mixture was concentrated to give a residue. The residue was subjected to silica gel chromatography, which afforded 0.21 g of 3,5-dichloro-1-(3,3-dichloro-2-propenyloxy)-4-(4-(N,N-dipropargylcarbamoyl)butyloxy)benzene (92% yield), nD25.0 1.5481. After stirring at room temperature for 24 hours the reaction mixture was concentrated to give a residue

Conditions: temp:5.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a cooled (5° C.) solution of K2CO3 (4 Kg, 29.0 mol) in water (17.5 L) and toluene (12.5 L) was added dipropargylamine (2.50 Kg, 26.88 mol). Benzyloxychloroformate (4.8 Kg, 28.14 mol) was added at a rate such that T<10° C. The solution was stirred at 5° C. for 10 mins and then allowed to warm to RT. The aqueous phase was separated and the organic phase was washed with 0.2M HCl (12.5 L), sat NaHCO3 (13.5 L) and brine (17 L) and the resultant solution used in step 7 (assayed to contain 6.23 Kg, 102% based on an evaporated portion). to warm to RT The aqueous phase was separated the organic phase was washed with 0.2M HCl (12.5 L)

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

Procedure: To a cooled (0° C.) solution of dipropargylamine (46.7 g, 502 mmol) in EtOAc (200 mL) and 10% aqueous K2CO3 (700 mL, 507 mmol) was slowly added a solution of N-(benzyloxycarbonyloxy)succinimide (125 g, 502 mmol) in EtOAc (500 mL) over 20 mins. The solution was stirred at 0° C. for 2 h then at RT 16 h. The phases were separated and the organic phase was washed with 10% aqueous K2CO3 (700 mL, 507 mmol) and then with saturated brine (500 mL) and was diluted to 1000 mL with EtOAc to give a 0.5M solution. at RT 16 h The phases were separated

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

Procedure: To a solution of 0.20 g of 5-(2,6-dichloro-4-(3,3-dichloro-2-propenyloxy)-phenoxy)valeric acid and 0.05 g of dipropargylamine dissolved in 10 ml of chloroform was added 0.11 g of WSC hydrochloride, while stirring at room temperature. After stirring at room temperature for 24 hours, the reaction mixture was concentrated to give a residue. The residue was subjected to silica gel chromatography, which afforded 0.21 g of 3,5-dichloro-1-(3,3-dichloro-2-propenyloxy)-4-(4-(N,N-dipropargylcarbamoyl)butyl-oxy)benzene (92% yield), nD25.0 1.5481. After stirring at room temperature for 24 hours the reaction mixture was concentrated to give a residue

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

Procedure: A stirred solution of 2,4-bis-benzyloxy-5-isopropenyl-benzoic acid (Example 1 Step 6) (1 equivalent) in dichloromethane (10 ml) was treated successively with N-ethyl-N′-(3-dimethylaminopropyl)carbodiimide hydrochloride (1.2 equivalents), 1-hydroxybenzotriazole (1.2 equivalents) and dipropargylamine (1.5 equivalents) and the mixture was stirred at room temperature overnight. The mixture was washed successively with 2M hydrochloric acid and 2M sodium hydroxide, the organic layer was separated and the solvent removed in vacuo to afford the product which was either obtained pure or was purified by column chromatography on silica (eluting with mixtures of ethyl acetate in petroleum ether or methanol in ethyl acetate as appropriate). MS: [M+H]+ 450 The mixture was washed successively with 2M hydrochloric acid and 2M sodium hydroxide the organic layer was separated the solvent removed in vacuo to afford the product which was purified by column chromatography on silica (eluting with mixtures of ethyl acetate in petroleum ether or methanol in ethyl acetate as appropriate)

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

Procedure: A stirred solution of 2,4-bis-benzyloxy-5-isopropenyl-benzoic acid (Example 1 Step 6) (1 equivalent) in dichloromethane (10 ml) was treated successively with N-ethyl-N′-(3-dimethylaminopropyl)carbodiimide hydrochloride (1.2 equivalents), 1-hydroxybenzotriazole (1.2 equivalents) and dipropargylamine (1.5 equivalents) and the mixture was stirred at room temperature overnight. The mixture was washed successively with 2M hydrochloric acid and 2M sodium hydroxide, the organic layer was separated and the solvent removed in vacuo to afford the product which was either obtained pure or was purified by column chromatography on silica (eluting with mixtures of ethyl acetate in petroleum ether or methanol in ethyl acetate as appropriate). MS: [M+H]+ 450 The mixture was washed successively with 2M hydrochloric acid and 2M sodium hydroxide the organic layer was separated the solvent removed in vacuo to afford the product which was purified by column chromatography on silica (eluting with mixtures of ethyl acetate in petroleum ether or methanol in ethyl acetate as appropriate)

Conditions: temp:5.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a cooled (5° C.) solution of K2CO3 (4 Kg, 29.0 mol) in water (17.5 L) and toluene (12.5 L) was added dipropargylamine (2.50 Kg, 26.88 mol). Benzyloxychloroformate (4.8 Kg, 28.14 mol) was added at a rate such that T<10° C. The solution was stirred at 5° C. for 10 mins and then allowed to warm to RT. The aqueous phase was separated and the organic phase was washed with 0.2M HCl (12.5 L), sat NaHCO3 (13.5 L) and brine (17 L) and the resultant solution used in step 7 (assayed to contain 6.23 Kg, 102% based on an evaporated portion). to warm to RT The aqueous phase was separated the organic phase was washed with 0.2M HCl (12.5 L)

Conditions: temp:5.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a cooled (5° C.) solution of K2CO3 (4 Kg, 29.0 mol) in water (17.5 L) and toluene (12.5 L) was added dipropargylamine (2.50 Kg, 26.88 mol). Benzyloxychloroformate (4.8 Kg, 28.14 mol) was added at a rate such that T<10° C. The solution was stirred at 5° C. for 10 mins and then allowed to warm to RT. The aqueous phase was separated and the organic phase was washed with 0.2M HCl (12.5 L), sat NaHCO3 (13.5 L) and brine (17 L) and the resultant solution used in step 7 (assayed to contain 6.23 Kg, 102% based on an evaporated portion). to warm to RT The aqueous phase was separated the organic phase was washed with 0.2M HCl (12.5 L)

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

Procedure: To a solution of 0.20 g of 5-(2,6-dichloro-4-(3,3-dichloro-2-propenyloxy)-phenoxy)valeric acid and 0.05 g of dipropargylamine dissolved in 10 ml of chloroform was added 0.11 g of WSC hydrochloride, while stirring at room temperature. After stirring at room temperature for 24 hours, the reaction mixture was concentrated to give a residue. The residue was subjected to silica gel chromatography, which afforded 0.21 g of 3,5-dichloro-1-(3,3-dichloro-2-propenyloxy)-4-(4-(N,N-dipropargylcarbamoyl)butyloxy)benzene (92% yield), nD25.0 1.5481. After stirring at room temperature for 24 hours the reaction mixture was concentrated to give a residue

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

Procedure: To a cooled (0° C.) solution of dipropargylamine (46.7 g, 502 mmol) in EtOAc (200 mL) and 10% aqueous K2CO3 (700 mL, 507 mmol) was slowly added a solution of N-(benzyloxycarbonyloxy)succinimide (125 g, 502 mmol) in EtOAc (500 mL) over 20 mins. The solution was stirred at 0° C. for 2 h then at RT 16 h. The phases were separated and the organic phase was washed with 10% aqueous K2CO3 (700 mL, 507 mmol) and then with saturated brine (500 mL) and was diluted to 1000 mL with EtOAc to give a 0.5M solution. at RT 16 h The phases were separated