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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 917360Generated: October 31, 2026

Dimethylformamide → HCID 69179969, compound

https://huagongshe.com/reaction/917360

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantBenzo(b)thiophene-2-carboxylic acidHCID 95864—
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 23020132HCID 23020132—
SolventWaterHCID 962—
ProductHCID 69179969HCID 6917996972.5%

Reaction Conditions

Temperature100 °C

Reaction Steps

To 10 ml of N,N-dimethylformamide were dissolved 0.29 g (1.1 mmol) of 8,8-difluoro-7-methyl-7-octenyl methanesulfonate and 0.26 g (1.5 mmol) of benzo[b]thiophene-2-carboxylic acid, followed by the addition of 0.28 g (3.3 mmol) of sodium hydrogencarbonate and stirring at 100° C. for 3 hours. The reaction liquid was then poured in water and extracted with diethyl ether. The organic layer was washed with water and a saturated saline solution in this order, followed by drying over anhydrous magnesium sulfate and concentration under reduced pressure. The residue was purified with silica gel column chromatography (diisopropyl ether:hexane=1:8) to obtain 0.27 g (yield: 71%) of 8,8-difluoro-7-methyl-7-octenyl benzo[b]thiophene-2-carboxylate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07273878B2
Source datasetuspto-grants-2007_09
ORD IDord-3b88855dfd6648ad852e83cd7dae3ac1
Source noteuspto-grants-2007_09