O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate → HCID 86660384, compound

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Reaction Steps

A mixture of 2-(2,6-dichloro-phenylamino)-1-methyl-1H-benzimidazole-5-carboxylic acid (1.0 g, 3.0 mmol), TBTU (955 mg, 3.0 mmol) and TEA (835 μL, 5.9 mmol) in 15 mL DMF was stirred for 72 h. The mixture was poured onto water, the solid filtered off, washed with water and dried.

Provenance & Evidence