Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1788555Generated: November 3, 2026

Diisopropylethylamine → Benzimidazole

https://huagongshe.com/reaction/1788555

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantMethanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 2733084—
Reactant2-(4'-Chloro-4-methoxy-biphen-2-yl)-quinoline-6-carboxylic acidHCID 86027313—
SolventDimethylformamideHCID 6228—
ProductBenzimidazoleHCID 5798—

Reaction Steps

Compound 525c (0.38 g, 0.97 mmol) was reacted with HBTU (0.444 g, 1.2 mmol) in anhydrous DMF (5 mL) in the presence of DIEA (0.41 mL, 2.35 mmol) for 30 min. The mixture was then transferred to a suspension of amine-resin in DMF (5 mL). The reaction mixture was shaken at room temperature overnight. The solution was drained and the resin was washed with DMF (5 mL×5), MeOH (5 mL×5), and CH2Cl2 (5 mL×5). The resin was dried under high vacuum.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07511145B2
Source datasetuspto-grants-2009_03
ORD IDord-2267f3d53bda4933bade31f83b91eb23
Source noteuspto-grants-2009_03