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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 434711Generated: November 1, 2026

Water → HCID 13194169, compound

https://huagongshe.com/reaction/434711

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 13194168HCID 13194168—
ReactantPyridinium hydrochlorideHCID 21584435—
SolventMethanolHCID 887—
SolventChloroformHCID 6212—
ProductHCID 13194169HCID 1319416947.3%

Reaction Conditions

Temperature50 °C

Reaction Steps

A mixture of 2-methoxy-5-methyl-10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5,10-imine (2.7 g, 0.0107 mol) and pyridinium hydrochloride (16.2 g) is stirred at 200° for 2 hours. The melt is cooled to 50° C. and slurried with water (75 ml). The slurry is made basic with aqueous saturated NaHCO3 and extracted with ether (3×100 ml). The combined extracts are dried over MgSO4 and filtered, and the filtrate evaporated to dryness under reduced pressure to give 2.19 g of crude product. Column chromatography (silica gel with 2% methanol in chloroform) provides a solid which is recrystallized from ethyl acetate to give 1.20 g (47%) of pure title compound; m.p. 215°-217° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04399141
Source datasetuspto-grants-1983_08
ORD IDord-1c419b73e1ee4d3aaf4345b1e1f1f06e
Source noteuspto-grants-1983_08