Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 631944Generated: October 25, 2026

Acetic Acid → HCID 178527899, compound

https://huagongshe.com/reaction/631944

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantIsopropanolHCID 3776—
Reactant6-Amino-2-mercaptobenzimidazoleHCID 2734002—
Reactant5-Bromo-1,3-benzodioxole-4-carboxaldehydeHCID 11031640—
ProductHCID 178527899HCID 17852789983%

Reaction Steps

5-bromobenzo[d][1,3]dioxol-4-carbaldehyde (0.24 g, 1.05 mmol), IPA (4.8 ml), and 5-amino-1H-benzo[d]imidazole-2(3H)-thione (0.2 g, 1.21 mmol) were put in a 25 ml flask, and acetic acid (10 ml) was slowly added dropwise thereto while the mixture was stirred under nitrogen charging conditions, followed by stirring for 12 hours under reflux conditions. After that, the temperature of the mixture was lowered to room temperature, and the thus obtained solid was washed with methylene chloride and methanol, followed by filtering, thereby obtaining clean (E)-5-((6bromobenzo[d][1,3]dioxol-4-yl)methyleneamino)-1H-benzo[d]imidazole-2(3H)-thione at 83% yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09321751B2
Source datasetuspto-grants-2016_04
ORD IDord-4ae515f8bb65489f940b93c4b1570404
Source noteuspto-grants-2016_04