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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2164869Generated: October 31, 2026

Thiourea → HCID 178456240, compound

https://huagongshe.com/reaction/2164869

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThioureaHCID 2723790—
Reactanttrans-(+/-)-1-n-Propyl-6-oxo-7-dimethylaminomethylenedecahydroquinolineHCID 54074822—
SolventEthanolHCID 702—
ProductHCID 178456240HCID 178456240—

Reaction Steps

One gram of trans-(±)-1-n-propyl-6-oxo-7-dimethylaminomethylenedecahydroquinoline was reacted with 0.33 g. of thiourea in 20 ml. of ethanol by refluxing overnight under a nitrogen atmosphere. The volatile constituents were removed in vacuo to yield trans-(±)-2-mercapto-6-n-propyl-5,5a,6,7,8,9,9a,10-octahydropyrimido[4,5-g]quinoline free base. The free base was converted to the dihydrochloride salt by standard procedures to yield 0.17 g. of dihydrochloride salt melting at 267°-277° C. after recrystallization from methanol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04507478
Source datasetuspto-grants-1985_03
ORD IDord-a6d47e27d18240cf8999f1ef278039a5
Source noteuspto-grants-1985_03