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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 641064Generated: October 30, 2026

Dimethylformamide → HCID 86612164, compound

https://huagongshe.com/reaction/641064

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantDiisopropylethylamineHCID 81531—
Reactant2-Benzimidazolecarboxylic acidHCID 233240—
ReactantO-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 2733207—
SolventWaterHCID 962—
ProductHCID 86612164HCID 86612164—

Reaction Steps

0.064 mmol of benzimidazolecarboxylic acid 4f was dissolved in DMF together with 0.064 mmol of the amine 5a, a solution of TBTU (0.096 mmol) in DMF, HOBT (0.026 mmol) in DMF and 0.32 mmol of DIPEA were added successively, and the mixture was stirred at room temperature. After 3 hours, a further 0.3 eq. of acid was added, and the mixture was stirred overnight. The reaction mixture was diluted with water, and the resulting precipitate was filtered off with suction and washed with water.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07691870B2
Source datasetuspto-grants-2010_04
ORD IDord-b72f0251ef9247ec84abbb0f6e710677
Source noteuspto-grants-2010_04