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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1294082Generated: October 30, 2026

Diethyl Ether → HCID 178502033, compound

https://huagongshe.com/reaction/1294082

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl EtherHCID 3283—
ReactantBenzene, 1-chloro-3-isocyanato-HCID 17968—
ReactantHCID 178502032HCID 178502032—
SolventTetrahydrofuranHCID 8028—
ProductHCID 178502033HCID 17850203369%

Reaction Conditions

Temperature45 °C

Reaction Steps

A mixture of methyl (5-(4aminophenoxy)-1H-benzimidazol-2-yl)carbamate (Intermediate 3) (80 mg, 0.27 mmol) and 3-chlorophenylisocyanate (49 mg, 0.32 mmol) in dry THF (2 ml) was heated to 45° C. overnight. After cooling, diethyl ether was added to form a precipitate. The solid was collected by filtration to provide the title compound (83 mg, 69%): 1H NMR (DMSO-d6) δ 11.60 (brs, 2H), 9.00 (s, 1H), 8.83 (s, 1H), 7.70 (m, 1H), 7.42 (d, 2H), 7.38 (d, 1H), 7.32–7.24 (m, 2H), 7.01 (m, 2H), 6.93 (d, 2H), 6.80 (dd, 1H) 3.75 (s, 3H); MS m/e 452 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07238813B2
Source datasetuspto-grants-2007_07
ORD IDord-a0d917b2b0614eb18ddde1bc0e0a7c8d
Source noteuspto-grants-2007_07