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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 130487Generated: October 30, 2026

Water → HCID 58599386, compound

https://huagongshe.com/reaction/130487

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant1-(1-Benzenesulfonyl-2,3-dihydro-1H-indol-5-yl)-ethanoneHCID 14112956—
ReactantPhenyltrimethylammonium bromide dibromideHCID 17977687—
SolventTetrahydrofuranHCID 8028—
ProductHCID 58599386HCID 58599386—

Reaction Steps

The ketone from step 1 (0.310 g, 1.02 mmol) was dissolved in THF (3 ml), and phenyltrimethylammonium tribromide (PTT) (0.386 g, 1.02 mmol) was added as a solid leaving an orange solution which began to deposit a white solid immediately. Stirring for 1.5 hours leaves a colorless mixture to which water (5 ml) was added. THF was then evaporated and the resulting aqueous mixture was extracted with ethyl acetate. Drying over Na2SO4 and evaporation leaves a white crystalline solid (85% desired mono-brominated material by LC-MS, 5% starting material, 10% dibrominated) suitable for the next step. LC-MS (ES+): 381, 379 m/e.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07381749B2
Source datasetuspto-grants-2008_06
ORD IDord-08eda72d0acb4146a0fab8d82a3d9087
Source noteuspto-grants-2008_06