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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2227168Generated: October 26, 2026

Dicyclohexylcarbodiimide → 5,6-dichloro-N-isopropyl-1H-benzo[d]imidazol-2-amine

https://huagongshe.com/reaction/2227168

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDicyclohexylcarbodiimideHCID 10868—
ReactantIsopropyl IsothiocyanateHCID 75263—
Reactant3,4-Dichlorobenzene-1,2-diamineHCID 10845020—
SolventPyridineHCID 1049—
Product5,6-dichloro-N-isopropyl-1H-benzo[d]imidazol-2-amineHCID 2299541860%

Reaction Steps

5,6-Dichloro-1,2-phenylenediamine (0.61 g, 3.4 mmol), isopropyl isothiocyanate (0.39 g, 3.8 mmol), dicyclohexyl carbodiimide (1.06 g, 5.14 mmol) and pyridine (10 L) were used according to general procedure I. The product was recrystallized from acetonitrile to afford a tan solid (0.46 g, 60%); m.p. 218-220° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06413938B1
Source datasetuspto-grants-2002_07
ORD IDord-12e3f2f617e447bbb608f1b7f31318b7
Source noteuspto-grants-2002_07