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Potassium Carbonate → Tert-butyl 4-(6-(1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamido)-3-ethylpyridin-2-yl)benzoate

HRID 2188948
Notes
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Reaction equation

HRID 2188948 reaction equation
Cl[C:2]1[N:7]=[C:6]([NH:8][C:9]([C:11]2([C:14]3[CH:24]=[CH:23][C:17]4[O:18][C:19]([F:22])([F:21])[O:20][C:16]=4[CH:15]=3)[CH2:13][CH2:12]2)=[O:10])[CH:5]=[CH:4][C:3]=1[CH2:25][CH3:26].[C:27]([O:31][C:32]([C:34]1[CH:39]=[CH:38][C:37](B(O)O)=[CH:36][CH:35]=1)=[O:33])([CH3:30])([CH3:29])[CH3:28].C(=O)([O-])[O-].[K+].[K+]>COCCOC>[F:21][C:19]1([F:22])[O:18][C:17]2[CH:23]=[CH:24][C:14]([C:11]3([C:9]([NH:8][C:6]4[N:7]=[C:2]([C:37]5[CH:38]=[CH:39][C:34]([C:32]([O:31][C:27]([CH3:28])([CH3:29])[CH3:30])=[O:33])=[CH:35][CH:36]=5)[C:3]([CH2:25][CH3:26])=[CH:4][CH:5]=4)=[O:10])[CH2:13][CH2:12]3)=[CH:15][C:16]=2[O:20]1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 2773301(4-((Tert-butoxy)carbonyl)phenyl)boronic acidHCID 59165835N-(6-chloro-5-ethylpyridin-2-yl)-1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamide

Product 1

HCID 59166006Tert-butyl 4-(6-(1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamido)-3-ethylpyridin-2-yl)benzoate

Reagents, catalysts & solvents 1

HCID 8071
1,2-Dimethoxyethane
Solvent

Conditions

Temperature
120 °C

Procedure

N-(6-Chloro-5-ethylpyridin-2-yl)-1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamide (38 mg; 0.10 mmol) was dissolved in 1 mL of 1,2-dimethoxyethane (DME) in a microwave reactor tube. 4-(tert-butoxycarbonyl)phenyl-boronic acid (29 mg, 0.13 mmol), 0.1 mL of an aqueous 2 M potassium carbonate solution, and tetrakis(triphenylphospine)palladium(0) (Pd(PPh3)4, 5.6 mg, 0.0048 mmol) were added and the reaction mixture was heated at 120° C. in a microwave reactor for 20 minutes. The resulting material was cooled to room temperature, filtered, and the layers were separated. The organic layer was concentrated in vacuo to yield tert-butyl 4-(6-(1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamido)-3-ethylpyridin-2-yl)benzoate which was used without further purification.

Workup

  1. temperatureThe resulting material was cooled to room temperature
  2. filtrationfiltered
  3. customthe layers were separated
  4. concentrationThe organic layer was concentrated in vacuo

Sources & evidence

ORD record
ord-2973d175ba36417e9739e0d344905499
Source dataset
uspto-grants-2012_12
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08324207B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes