2,6-Dichloro-4-(trifluoromethyl)benzaldehyde → Ethyl 3-(5-(3-chloro-2-formyl-5-(trifluoromethyl)phenyl)picolinamido)propanoate

HRID 405251Notes

Reaction equation

Cl[C:2]1[CH:9]=[C:8]([C:10]([F:13])([F:12])[F:11])[CH:7]=[C:6]([Cl:14])[C:3]=1[CH:4]=[O:5].CC1(C)C(C)(C)OB([C:23]2[CH:24]=[CH:25][C:26]([C:29]([NH:31][CH2:32][CH2:33][C:34]([O:36][CH2:37][CH3:38])=[O:35])=[O:30])=[N:27][CH:28]=2)O1>O1CCOCC1.O.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[Cl:14][C:6]1[C:3]([CH:4]=[O:5])=[C:2]([C:23]2[CH:24]=[CH:25][C:26]([C:29]([NH:31][CH2:32][CH2:33][C:34]([O:36][CH2:37][CH3:38])=[O:35])=[O:30])=[N:27][CH:28]=2)[CH:9]=[C:8]([C:10]([F:13])([F:12])[F:11])[CH:7]=1

Participants

Conditions

Temperature: 90 °C

Procedure

2,6-Dichloro-4-(trifluoromethyl)benzaldehyde (3.2 g, 13.2 mmol), ethyl 3-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinamido)propanoate (1.5 g, 4.4 mmol), Pd(dppf)Cl2 (320 mg, 0.4 mmol) and K3Pa4hydrate (3.0 g, 13.2 mmol) were dissolved in 1,4-dioxane (200 mL) and the resulting mixture was heated to 90° C. After 10 h the resulting mixture was diluted with water and extracted with EtOAc. The combined organic extracts were dried (Na2SO4), concentrated, and purified via column chromatography to yield the title compound.

Workup

extractionextracted with EtOAc
dry with materialThe combined organic extracts were dried (Na2SO4)
concentrationconcentrated
custompurified via column chromatography

Sources & evidence

ORD record: ord-50bc7f0a6f3648f29cc479efd9b6d6c0
Source dataset: uspto-grants-2014_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08748624B2

Reaction notes

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