2-azidoethanamine

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

Procedure: To a 25 mL round-bottomed flask equipped with a magnetic stir bar was added 2′,4′-difluoro-3-hydroxybiphenyl-4-carboxylic acid (0.301, 1.20 mmol), N,N-Dimethylformamide (5 mL), N,N′-Dicyclohexylcarbodiimide (0.248 g, 1.20 mmol) and n-methylmorpholine (0.25 mL). The reaction mixture was cooled to 0° C. and allowed to stir. Then, 2-azidoethanamine (0.1037 g, 1.20 mmol) was added dropwise and allowed to slowly warm to room temperature while stirring for 24 hr. The reaction mixture was diluted with water, extracted with dichloromethane, washed with 1N HCl, washed with saturated sodium bicarbonate, washed with brine and then concentrated de vacuo. The resulting residue was then purified via silica gel column chromatography (1:40 methanol:dichloromethane to 1:10 methanol:dichloromethane) to give N-(2-azidoethyl)-2′,4′-difluoro-3-hydroxybiphenyl-4-carboxamide (0.232 g, 61% yield). 1H NMR (300 MHz, CDCl3) δ 7.60 (s, 1H), δ 7.47 (d, 1H), δ 7.29 (m, 2H), δ 7.02 (d, 1H), δ 6.88 (m, 2H) ppm; 13C NMR (75 MHz, CDCl3) δ 170.3, 160.8, 135.1, 131.3, 131.2, 131.3, 131.2, 126.8, 118.8, 114.6, 112.0, 111.8, 104.8, 104.6, 104.3, 50.7, 39.3 ppm; HRMS (ESI) calcd for C1-15H12F2N4O3 (M+) 318.0928, found 318.0933. To a 25 mL round-bottomed flask equipped with a magnetic stir bar to slowly warm to room temperature while stirring for 24 hr extracted with dichloromethane washed with 1N HCl washed with saturated sodium bicarbonate washed with brine concentrated de vacuo The resulting residue was then purified via silica gel column chromatography (1:40 methanol:dichloromethane to 1:10 methanol:dichloromethane)

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

Procedure: To a 25 mL round-bottomed flask equipped with a magnetic stir bar was added (E)-2-methyl-3-phenylacrylic acid (0.0.512 g, 3.15 mmol) and dichloromethane (10 mL). Oxalyl chloride (0.400 g, 3.15 mmol) was added dropwise to the reaction mixture and allowed to stir for one hour. Then, the reaction mixture was concentrated de vacuo. To the crude mixture was then added dichloromethane (10 mL), 2-azidoethanamine (0.299 g, 3.47 mmol) and then triethylamine (0.351 g, 3.47 mmol) and allowed to stir for two hours. The reaction mixture was then concentrated de vacuo and then purified via silica gel column chromatography (100% dichloromethane to 1:40 methanol:dichloromethane) to give (E)-N-(2-azidoethyl)-2-methyl-3-phenylacrylamide (0.698 g, 96% yield). 1H NMR (300 MHz, CDCl3) δ 7.39 (m, 6H), δ 7.01 (s, 1H), δ 3.51 (t, 2H), δ 3.45 (t, 2H), δ 2.13 (s, 3H) ppm; 13C NMR (75 MHz, CDCl3) δ 170.5, 136.2, 134.5, 132.0, 130.3, 129.6, 128.9, 128.6, 128.3, 50.9, 39.8, 14.5 ppm; HRMS (ESI) calcd for C12H14N4O (M+) 230.1168, found 230.1165. To a 25 mL round-bottomed flask equipped with a magnetic stir bar Then, the reaction mixture was concentrated de vacuo to stir for two hours The reaction mixture was then concentrated de vacuo purified via silica gel column chromatography (100% dichloromethane to 1:40 methanol:dichloromethane)

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

Procedure: As in the synthesis of N-(2-azidoethyl)tetradecanamide, (0.262 g, 1.19 mmol) was reacted with 2-azidoethanamine (0.103 g, 1.19 mmol) and triethylamine (0.242 g, 2.39 mmol) in dichloromethane (5 mL) to give N-(2-azidoethyl)dodecanamide (0.220 g, 69%). 1H NMR (300 MHz, CDCl3) δ 6.11 (s, 1H), δ 3.40 (d, 2H), δ 3.37 (d, 2H), δ 2.17 (t, 2H), δ 1.59 (q, 2H), δ 1.22 (s, 14H), δ 0.84 (t, 3H) ppm; 13C NMR (75 MHz, CDCl3) δ 173.8, 51.1, 39.1, 36.8, 32.1, 29.8, 29.7, 29.6, 29.5, 29.5, 29.2, 25.9, 22.9, 14.3 ppm; HRMS (ESI) calcd for C14H28N4O (M+) 268.2263, found 268.2259.

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

Procedure: As in the synthesis of N-(2-azidoethyl)tetradecanamide, (0.249 g, 1.17 mmol) was reacted with 2-azidoethanamine (0.101 g, 1.17 mmol) and triethylamine (0.237 g, 2.34 mmol) in dichloromethane (5 mL) to give N-(2-azidoethyl)-1H-pyrrole-2-carboxamide (0.137 g, 66%). 1H NMR (300 MHz, CD3OD) δ 6.88 (d, 1H), δ 6.77 (d, 1H), δ 6.14 (t, 1H), δ 3.46 (t, 2H), δ 3.37 (q, 2H) ppm; 13C NMR (75 MHz, CD3OD) δ 162.9, 125.6, 122.2, 121.9, 110.9, 109.2, 50.6, 38.9 ppm; HRMS (ESI) calcd for C7H9N5O (M+) 179.0807, found 179.0803.

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

Procedure: As in the synthesis of N-(2-azidoethyl)tetradecanamide, (0.283 g, 1.31 mmol) was reacted with 2-azidoethanamine (0.113 g, 1.31 mmol) and triethylamine (0.264 g, 2.61 mmol) in dichloromethane (5 mL) to give N-(2-azidoethyl)biphenyl-4-carboxamide (0.297 g, 85%). 1H NMR (300 MHz, CDCl3) δ 7.88 (d, 2H), δ 7.67 (m, 4H), δ 7.44 (m, 3H), δ 6.63 (s, 1H), δ 3.67 (q, 2H), 8 (3.58 (t, 2H) ppm; 13C NMR (75 MHz, CDCl3) δ 167.8, 144.8, 140.1, 132.9, 129.2, 128.3, 127.8, 127.5, 127.4, 51.2, 39.7 ppm; HRMS (ESI) calcd for C15H14N4O (M+) 266.1168, found 266.1162.

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

Procedure: As in the synthesis of N-(2-azidoethyl)tetradecanamide, 4-pentylbenzoyl chloride (0.283 g, 1.35 mmol) was reacted with 2-azidoethanamine (0.116 g, 1.35 mmol) and triethylamine (0.273 g, 2.69 mmol) in dichloromethane (5 mL) to give N-(2-azidoethyl)-4-pentylbenzamide (0.267 g, 76%). 1H NMR (300 MHz, CDCl3) δ 7.74 (d, 2H), δ 7.61 (t, 1H), δ 7.15 (d, 2H), δ 3.54 (q, 2H), δ 3.44 (t, 2H), δ 2.58 (t, 2H), δ 1.57 (m, 2H), δ 1.26 (m, 4H), δ 0.86 (t, 3H) ppm; 13C NMR (75 MHz, CDCl3) δ 168.6, 147.2, 131.7, 128.7, 127.5, 50.8, 39.7, 35.9, 31.6, 31.1, 22.7, 14.2 ppm; HRMS (ESI) calcd for C14H20N4O (M+) 260.1637, found 260.1632.

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

Procedure: As in the synthesis of N-(2-azidoethyl)tetradecanamide, 4-hexylbenzoyl chloride (0.293 g, 1.30 mmol) was reacted with 2-azidoethanamine (0.112 g, 1.30 mmol) and triethylamine (0.264 g, 2.61 mmol) in dichloromethane (5 mL) to give N-(2-azidoethyl)-4-hexylbenzamide (0.299 g, 84%). 1H NMR (300 MHz, CDCl3) δ 7.75 (d, 2H), δ 7.43 (t, 1H), δ 7.17 (d, 2H), δ 3.55 (q, 2H), δ 3.46 (t, 2H), δ 2.59 (t, 2H), δ 1.58 (m, 2H), δ 1.29 (m, 4H), δ 0.87 (t, 3H) ppm; 13C NMR (75 MHz, CDCl3) δ 168.6, 147.3, 131.7, 130.3, 128.8, 127.5, 50.9, 39.7, 35.9, 31.6, 31.1, 22.7, 14.2 ppm; HRMS (ESI) calcd for C15H22N4O (M+) 274.1794, found 274.1789.

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

Procedure: As in the synthesis of N-(2-azidoethyl)tetradecanamide, (0.242 g, 1.22 mmol) was reacted with 2-azidoethanamine (0.105 g, 1.22 mmol) and triethylamine (0.246 g, 2.43 mmol) in dichloromethane (5 mL) to give N-(2-azidoethyl)-4-butylbenzamide (0.224 g, 75%). 1H NMR (300 MHz, CDCl3) δ 7.73 (d, 2H), δ 7.39 (t, 1H), δ 7.17 (d, 2H), δ 3.55 (q, 2H), δ 3.45 (t, 2H), δ 2.60 (t, 2H), δ 1.56 (m, 2H), δ 1.30 (m, 2H), δ 0.90 (t, 3H) ppm; 13C NMR (75 MHz, CDCl3) δ 168.5, 147.2, 131.7, 128.8, 127.4, 50.9, 39.7, 35.7, 33.5, 22.5, 14.1 ppm; HRMS (ESI) calcd for C13H18N4O (M+) 246.1481, found 246.1476.