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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 452748Generated: October 30, 2026

Carbon Disulfide → HCID 178504605, compound

https://huagongshe.com/reaction/452748

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbon DisulfideHCID 6348—
ReactantTriethylamineHCID 8471—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 68664090HCID 68664090—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 178504605HCID 17850460567%

Reaction Steps

A solution of 1-[4-(methylsulfinyl)phenyl]-1H-benzimidazole-6-carbohydrazide (1.26 g, 4.00 mmol), carbon disulfide (0.601 mL, 10.0 mmol) and triethylamine (0.669 mL, 4.80 mmol) in ethanol (20 mL) was heated under reflux for 3 hr. After cooling, the reaction mixture was poured into water, and alkalified with 1 M aqueous sodium hydroxide solution. The obtained aqueous solution was filtered, and the filtrate was neutralized with 1M hydrochloric acid. The precipitate was collected by filtration, and washed with ethanol to give the title compound (0.955 g, yield 67%) as colorless crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08492378B2
Source datasetuspto-grants-2013_07
ORD IDord-a591eb78d5ae40298d1a67416de4773b
Source noteuspto-grants-2013_07