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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 223116Generated: October 30, 2026

Propionyl chloride → HCID 20522459, compound

https://huagongshe.com/reaction/223116

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPropionyl chlorideHCID 62324—
Reactant1,1,2,6-Tetramethyl-3-(propan-2-yl)-2,3-dihydro-1H-indeneHCID 3017888—
ReactantAluminum(III) ChlorideHCID 6451240—
SolventNitromethaneHCID 6375—
ProductHCID 20522459HCID 2052245980%

Reaction Steps

At 0°-5° C. a solution of 4 g AlCl3 in 50 ml nitromethane is added to a mixture of 6 g 1-isopropyl-2,3,3,5-tetramethyl indan (obtained according to example I or II) and 25 g propionyl chloride. Then the reaction mixture is stirred at room temperature during one hour and poured out into ice and extracted three times with ether. The solution in ether is washed neutral, dried and evaporated. The residue is distilled under diminished pressure to obtain 6-propionyl-1-isopropyl-2,3,3,5-tetramethyl indan in a yield of 80%. B.p. 145° C./1 mm Hg.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04352748
Source datasetuspto-grants-1982_10
ORD IDord-60b82b61028b4ae38084e967486dd022
Source noteuspto-grants-1982_10