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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 399188Generated: October 26, 2026

Sulfur trioxide triethylamine complex → 3,5-Difluorobenzonitrile

https://huagongshe.com/reaction/399188

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfur trioxide triethylamine complexHCID 222301—
Reactant3,5-DifluorobenzamideHCID 2736910—
SolventTriethylamineHCID 8471—
Product3,5-DifluorobenzonitrileHCID 58720485.7%

Reaction Conditions

Temperature89 °C

Reaction Steps

A suspension of 10 mmol of 3,5-difluorobenzamide and 25 mmol of triethylamine-sulphur trioxide in 30 ml of triethylamine was stirred at 89° C. for 1 hour. The working up was effected as described under Example 1a). Yield: 85.7% of theory.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05817827
Source datasetuspto-grants-1998_10
ORD IDord-caeff4bacf96472ca392dbc8cd0d0e74
Source noteuspto-grants-1998_10