Triethylamine → N-(6-chloro-5-methylpyridin-2-yl)-1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropane-1-carboxamide

HRID 869895Notes

Reaction equation

HRID 869895 reaction equation
[Cl:1][C:2]1[N:7]=[C:6]([NH2:8])[CH:5]=[CH:4][C:3]=1[CH3:9].CCN(CC)CC.[F:17][C:18]1([F:33])[O:22][C:21]2[CH:23]=[CH:24][C:25]([C:27]3([C:30](Cl)=[O:31])[CH2:29][CH2:28]3)=[CH:26][C:20]=2[O:19]1>ClCCl>[Cl:1][C:2]1[N:7]=[C:6]([NH:8][C:30]([C:27]2([C:25]3[CH:24]=[CH:23][C:21]4[O:22][C:18]([F:33])([F:17])[O:19][C:20]=4[CH:26]=3)[CH2:29][CH2:28]2)=[O:31])[CH:5]=[CH:4][C:3]=1[CH3:9]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 450795946-Chloro-5-methylpyridin-2-amineHCID 575168501-(2,2-Difluoro-1,3-benzodioxol-5-yl)cyclopropanecarbonyl chloride

Product 1

HCID 59165796N-(6-chloro-5-methylpyridin-2-yl)-1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropane-1-carboxamideYield 94%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a solution of 6-chloro-5-methylpyridin-2-amine (11.1 g, 78.0 mmol) and Et3N (22.0 mL, 156 mmol) in dichloromethane (100 mL) was added a solution of 1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarbonyl chloride (20.3 g, 78.0 mmol) in dichloromethane (50 mL). The resulting reaction mixture was allowed to stir at room temperature for 18 hours. The reaction mixture was then washed with 1N aqueous NaOH (2×200 mL), 1N aqueous HCl (1×200 mL), and saturated aqueous NaHCO3 (1×200 mL). The organics were dried over sodium sulfate and evaporated to yield N-(6-chloro-5-methylpyridin-2-yl)-1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamide (26.9 g, 94% over two steps). ESI-MS m/z calc. 366.1. found 367.3 (M+1)+. Retention time 2.19 minutes. 1H NMR (400 MHz, DMSO-d6) δ 9.30 (s, 1H), 7.89-7.87 (m, 1H), 7.78-7.76 (m, 1H), 7.54-7.53 (m, 1H), 7.41-7.39 (m, 1H), 7.33-7.30 (m, 1H), 2.26 (s, 3H), 1.52-1.49 (m, 2H), 1.19-1.16 (m, 2H).

Workup

  1. customThe resulting reaction mixture
  2. washThe reaction mixture was then washed with 1N aqueous NaOH (2×200 mL), 1N aqueous HCl (1×200 mL), and saturated aqueous NaHCO3 (1×200 mL)
  3. dry with materialThe organics were dried over sodium sulfate
  4. customevaporated

Sources & evidence

ORD record
ord-e4d7713192614c1f9b31d19efd0456a9
Source dataset
uspto-grants-2015_03
Patent number
US08969386B2

Reaction notes

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