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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1729993Generated: October 30, 2026

Potassium Carbonate → HCID 68139207, compound

https://huagongshe.com/reaction/1729993

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantMethyl bromoacetateHCID 60984—
Reactant1,3,4,9b-tetrahydro-5-methyl-2H-indeno[1,2-c]pyridineHCID 21498788—
SolventDimethylformamideHCID 6228—
ProductHCID 68139207HCID 68139207—

Reaction Steps

A solution of 15.3 g of bromoacetic acid methyl ester in 50 cc of dimethyl formamide is added dropwise at 60° while stirring to a mixture of 18.5 g of 1,3,4,9b-tetrahydro-5-methyl-2H-indeno[1,2-c]pyridine and 41.4 g of potassium carbonate in 200 cc of dimethyl formamide. The reaction mixture is allowed to react at 60° for 1 hour, is poured on ice water and is extracted thrice with chloroform. The extracts are dried and completely concentrated by evaporation, the residue is dissolved in 50 cc of methanol, and the calculated amount of hydrochloric acid in ethanol is added. After the addition of ether, 1,3,4,9 b-tetrahydro-5-methyl-2H-indeno [1,2-c]pyridine-2-acetic acid methyl ester crystallizes as hydrochloride and is recrystallized twice from ethanol for further purification. The hydrochloride has a M.P. of 184°-185°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03991066
Source datasetuspto-grants-1976_11
ORD IDord-2f012fb97c084138add6544dcb5958f2
Source noteuspto-grants-1976_11