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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2269301Generated: October 31, 2026

Hydrogen Bromide → HCID 18347150, compound

https://huagongshe.com/reaction/2269301

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
Reactant5,6-Dimethyl-1-indanoneHCID 27878—
ReactantThioacetamideHCID 2723949—
ReactantHCID 18347144HCID 18347144—
ReactantHCID 18347158HCID 18347158—
SolventAcetic AcidHCID 176—
SolventAcetoneHCID 180—
ProductHCID 18347150HCID 18347150—

Reaction Steps

5,6-Dimethylindan-1-one is converted as described above for the other indan-1-ones into 2-bromo-5,6-dimethylindan-1-one. This is reacted with an equivalent amount of thioacetamide in acetone. The precipitate consisting of the hydrobromide of 2,5,6-trimethyl-8,8a-dihydroindeno-[1,2-d]thiazol-3a-ol is heated in glacial acetic acid and affords, after removal of the solvent and treatment with diisopropyl ether, 2,5,6-trimethyl-8H-indeno[1,2-d]thiazole hydrobromide with a melting point of 290° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06329407B1
Source datasetuspto-grants-2001_12
ORD IDord-8cd861f72bd4437a984e41443941b751
Source noteuspto-grants-2001_12