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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 4960Generated: October 26, 2026

Diethylene Glycol Monoethyl Ether → 6-[4-(4-(5-Carbamoylbenzimidazol-1-yl)butyl)piperazino]-1,4-benzodioxane

https://huagongshe.com/reaction/4960

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethylene Glycol Monoethyl EtherHCID 8146—
ReactantSodium HydroxideHCID 14798—
Reactant6-[4-(4-(5-Cyanobenzimidazol-1-yl)butyl)piperazino]-1,4-benzodioxaneHCID 19797317—
SolventWaterHCID 962—
Product6-[4-(4-(5-Carbamoylbenzimidazol-1-yl)butyl)piperazino]-1,4-benzodioxaneHCID 19797326—

Reaction Steps

A mixture of 4.16 g of 6-[4-(4-(5-cyanobenzimidazol-1-yl)butyl)piperazino]-1,4-benzodioxane, 2.4 g of NaOH, 50 ml of H2O and 40 ml of diethylene glycol monoethyl ether is stirred at a bath temperature of 140° for 3 hours. The mixture is then cooled to room temperature, worked up in the conventional manner and gives 6-[4-(4-(5-carbamoylbenzimidazol-1-yl)butyl)piperazino]-1,4-benzodioxane.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05242925
Source datasetuspto-grants-1993_09
ORD IDord-a782508ad5da4e58a935bed7bb6cedd1
Source noteuspto-grants-1993_09