Dimethylformamide → Methyl 4-(1-cyano-6-methoxynaphthalen-2-yl)benzoate

HRID 1771461Notes

Reaction equation

Br[C:2]1[C:11]2[C:6](=[CH:7][C:8]([O:12][CH3:13])=[CH:9][CH:10]=2)[CH:5]=[CH:4][C:3]=1[C:14]1[CH:23]=[CH:22][C:17]([C:18]([O:20][CH3:21])=[O:19])=[CH:16][CH:15]=1.[CH3:24][N:25](C=O)C>[C-]#N.[C-]#N.[Zn+2].C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[C:24]([C:2]1[C:11]2[C:6](=[CH:7][C:8]([O:12][CH3:13])=[CH:9][CH:10]=2)[CH:5]=[CH:4][C:3]=1[C:14]1[CH:23]=[CH:22][C:17]([C:18]([O:20][CH3:21])=[O:19])=[CH:16][CH:15]=1)#[N:25]

Participants

Conditions

Temperature: 120 °C

Procedure

To a solution of methyl 4-(1-bromo-6-methoxynaphthalen-2-yl)benzoate (300 mg, 0.811 mmol) (see Example 12 step 1) in DMF (10 mL) was added Zn(CN)2 (191 mg, 1.62 mmol) and Pd(PPh3)4 (93.8 mg, 0.0811 mmol). The resulting mixture was stirred at 120° C. under N2 atmosphere for 16 hours. After cooling to room temperature, the mixture was filtered and the filtrate was diluted with EtOAc (60 mL), washed with H2O (20 mL×3) and brine (20 mL), dried over anhydrous Na2SO4, filtered and concentrated in vacuo. Purification by silica gel column (PE/EtOAc=200/1 to 50/1) gave the product (210 mg, yield 82%) as a solid.

Workup

temperatureAfter cooling to room temperature
filtrationthe mixture was filtered
additionthe filtrate was diluted with EtOAc (60 mL)
washwashed with H2O (20 mL×3) and brine (20 mL)
dry with materialdried over anhydrous Na2SO4
filtrationfiltered
concentrationconcentrated in vacuo
customPurification by silica gel column (PE/EtOAc=200/1 to 50/1)

Sources & evidence

ORD record: ord-be08efcbbab148aea8db41bd3cbceaf6
Source dataset: uspto-grants-2016_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09249132B2

Reaction notes

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