Sodium Carbonate → 4-(5-Formyl-pyridin-3-yl)-3-methoxy-benzonitrile

HRID 391292Notes

Reaction equation

Br[C:2]1[CH:9]=[CH:8][C:5]([C:6]#[N:7])=[CH:4][C:3]=1[O:10][CH3:11].CC1(C)C(C)(C)OB([C:20]2[CH:21]=[C:22]([CH:26]=[O:27])[CH:23]=[N:24][CH:25]=2)O1.C([O-])([O-])=O.[Na+].[Na+]>O1CCOCC1.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH:26]([C:22]1[CH:21]=[C:20]([C:2]2[CH:9]=[CH:8][C:5]([C:6]#[N:7])=[CH:4][C:3]=2[O:10][CH3:11])[CH:25]=[N:24][CH:23]=1)=[O:27]

Participants

Conditions

Temperature: 100 °C

Procedure

A mixture of 4-bromo-3-methoxy-benzonitrile (400 mg, 1.88 mmol), 5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyridine-3-carbaldehyde (440 mg, 1.88 mmol), PdCl2(PPh3)2 (108 mg, 0.15 mmol) and Na2CO3 (2M in water, 1.88 mL, 3.77 mmol) in 1,4-dioxane (8 mL) was heated at 100° C. for 1.5 h. After concentration in vacuo, the resulting residue was purified by flash column to give the title compound (449 mg, 100%) as white solid; ESI-MS m/z: 239 [M+1]+.

Workup

concentrationAfter concentration in vacuo
customthe resulting residue was purified by flash column

Sources & evidence

ORD record: ord-a0fbc2d4c2f8414fa431999423c0361f
Source dataset: uspto-grants-2013_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08383827B2

Reaction notes

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