N-Fluorobenzenesulfonimide → HCID 21912186, compound

HRID 968000Notes

Reaction equation

Br[C:2]1[CH:22]=[C:21]([CH3:23])[C:5]([O:6][C:7]2[C:12]([CH3:13])=[C:11]([NH:14][CH:15]([CH2:18][CH3:19])[CH2:16][CH3:17])[CH:10]=[C:9]([CH3:20])[N:8]=2)=[C:4]([CH3:24])[CH:3]=1.N([F:44])(S(C1C=CC=CC=1)(=O)=O)S(C1C=CC=CC=1)(=O)=O>C1COCC1>[CH2:16]([CH:15]([NH:14][C:11]1[CH:10]=[C:9]([CH3:20])[N:8]=[C:7]([O:6][C:5]2[C:21]([CH3:23])=[CH:22][C:2]([F:44])=[CH:3][C:4]=2[CH3:24])[C:12]=1[CH3:13])[CH2:18][CH3:19])[CH3:17]

Participants

Conditions

Temperature: -78 °C

Procedure

To a solution of [2-(4-bromo-2,6-dimethyl-phenoxy)-3,6-dimethyl-pyridin-4-yl]-(1-ethyl-propyl)-amine in dry THF was added n-butylitium at −78° C. After stirring at −78° C. for 10 min, (PhSO2)2NF was added and the resulting mixture was stirred at −78° C. for 30 min, the dry-ice bath was removed. After stirring for 5 min, the mixture was quenched with brine and extracted with ethyl acetate. The organic layer was separated, dried, and concentrated to dryness. The residue was purified through silica gel chromatography to give the title compound. 1H NMR(CDCl3) d 6.77(s, 1H), 6.73(s, 1H), 6.08(s, 1H), 3.3(m, 1H), 2.12(s, 3H), 2.09(s, 6H), 2.08(s, 3H), 1.4-1.8(m, 4H), 0.97(t, 6H), ppm.

Workup

stirringthe resulting mixture was stirred at −78° C. for 30 min
customthe dry-ice bath was removed
stirringAfter stirring for 5 min
customthe mixture was quenched with brine
extractionextracted with ethyl acetate
customThe organic layer was separated
customdried
concentrationconcentrated to dryness
customThe residue was purified through silica gel chromatography

Sources & evidence

ORD record: ord-8e81ff2510eb4b35bedb8530e3087bb4
Source dataset: uspto-grants-2005_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06956047B1

Reaction notes

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