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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1821441Generated: November 1, 2026

Dimethylformamide → (E)-N-{2-[2-(1H-indazol-3-yl)vinyl]phenyl}-4-bromo-3-methylthiophene-2-carboxamide

https://huagongshe.com/reaction/1821441

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantTriethylamineHCID 8471—
ReactantThionyl ChlorideHCID 24386—
Reactant4-Bromo-3-methylthiophenecarboxylic acidHCID 2757073—
ReactantHCID 69001756HCID 69001756—
SolventDichloromethaneHCID 6344—
SolventTetrahydrofuranHCID 8028—
Product(E)-N-{2-[2-(1H-indazol-3-yl)vinyl]phenyl}-4-bromo-3-methylthiophene-2-carboxamideHCID 6900075724%

Reaction Steps

In a similar manner to Example 29, 4-bromo-3-methylthiophene-2-carboxylic acid (0.10 g, 0.47 mmol) was treated with thionyl chloride (53 μL, 0.72 mmol), DMF (5.0 μL, 0.085 mmol) and dichloromethane (2.0 mL), followed by reacting with Compound 2 (0.10 g, 0.43 mmol), triethylamine (60 μL, 1.1 mmol) and THF (2.0 mL) to obtain Compound 353 (44 mg, 24%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07605272B2
Source datasetuspto-grants-2009_10
ORD IDord-2c8d633f6184483fa57eca6d9b8c860c
Source noteuspto-grants-2009_10