Trimethylsilylacetylene → 6-(4-chlorobenzoyl)-1-methyl-4-(3-((trimethylsilyl)ethynyl)phenyl)-1,8-naphthyridin-2(1H)-one

HRID 1799167Notes

Reaction equation

Br[C:2]1[CH:3]=[C:4]([C:8]2[C:17]3[C:12](=[N:13][CH:14]=[C:15]([C:18](=[O:26])[C:19]4[CH:24]=[CH:23][C:22]([Cl:25])=[CH:21][CH:20]=4)[CH:16]=3)[N:11]([CH3:27])[C:10](=[O:28])[CH:9]=2)[CH:5]=[CH:6][CH:7]=1.[Si:29]([C:33]#[CH:34])([CH3:32])([CH3:31])[CH3:30]>C1COCC1.CCOC(C)=O.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.[Cu]I>[Cl:25][C:22]1[CH:23]=[CH:24][C:19]([C:18]([C:15]2[CH:16]=[C:17]3[C:12](=[N:13][CH:14]=2)[N:11]([CH3:27])[C:10](=[O:28])[CH:9]=[C:8]3[C:4]2[CH:5]=[CH:6][CH:7]=[C:2]([C:34]#[C:33][Si:29]([CH3:32])([CH3:31])[CH3:30])[CH:3]=2)=[O:26])=[CH:20][CH:21]=1

Participants

Conditions

Temperature: 60 °C

Procedure

To a solution of compound I (1 g, 2.21 mmol) in THF (10.0 mL), TEA (4 mL) was added followed by (PPh3)4Pd (0.25 g, 0.22 mmol) and CuI (42 mg, 0.22 mmol). The mixture was degassed using N2 for 30 min and TMS-acetylene (0.92 g, 6.64 mmol) was added. The mixture was heated in a microwave oven at 60° C. for 30 min. The reaction mixture was diluted with EtOAc (25 mL) and passed through a pad of celite. The filtrate was concentrated. Purification of the crude product provided 825 mg (80%) of compound J.

Workup

customThe mixture was degassed
customfor 30 min
concentrationThe filtrate was concentrated
customPurification of the crude product

Sources & evidence

ORD record: ord-bfc77b2325be41759c33360caf200a9f
Source dataset: uspto-grants-2013_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08343996B2

Reaction notes

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